The Biggest Loser

Twelve people who want to get healthy and transform their lives arrive at 'The Biggest Loser Campus.'

A loss by one team causes emotions to run high as the contestants push harder to meet their goals.

Two contestants overcome their insecurities and emerge as leaders during this week's challenge.

All the remaining contestants finally get to reconnect with friends and family.

The contestants take a dive into fitness as friendships grow stronger.

One contestant faces an unexpected obstacle, forcing their team to come together in new ways.

There are six contestants left—and no more teams. Everyone is wearing the same uniform now. That means they also have to hold themselves that much more accountable for every minute, every rep, every calorie, every challenge, every pound if they intend to stay any longer. Just when you think they've been pushed to the brink, think again. This burn is going to turn into an inferno.

The contestants get the encouragement they need to keep going forward on their adventure.

The final four contestants revisit a fitness milestone to see how much progress they have made.

All twelve contestants return to The Biggest Loser campus for one final weigh-in, to see where they've come since they started. One person will win $100,000 and the title of The Biggest Loser. One of the eliminated contestants will win the $25,000 At-Home Prize. 

Bob Harper, the longtime Biggest Loser trainer who has been with NBC's popular weight-loss series since Season 1, will take on an exciting new role - and have a much bigger presence this season - when he also becomes the host of The Biggest Loser. Harper will continue to offer his training expertise to contestants at various points throughout the season. Dolvett Quince and Jennifer Widerstrom will also be returning for the 17th season, training eight contestant teams of two in an exciting return to team-versus-team competition.

This week the contestants must face their biggest temptation of all - food. Host Bob Harper meets them at a food court where they must rely on their newfound nutrition knowledge to win a trivia challenge about unhealthy food. The winning team gets to choose a player from the opposing team to sit out at the weigh in. Then the contestants meet Dr. Huizenga at a medical research facility for a sobering look at how the food choices people make can mean the difference between life and death. ACCLAIMED CHEF LORENA GARCIA GUEST STARS - Host Bob Harper greets contestants with the news that their challenge this week involves pulling food trucks. The team that wins gets a crash course in healthy cooking and eating from popular chef Lorena Garcia, while the losing team has to eat from the food trucks - a challenging task requiring them to resist temptation and choose wisely from the limited healthy food choices. Also this week, one trainer works to create better bonding and trust with their team while Bob surprises the contestants with a chance to win a weigh-in advantage before they step on the scale.

The teams face a challenge in the form of an obstacle course where the winning team can choose to skype with their families or have the gym to themselves, while the losing team gets what the winning team passes on. Following this challenge, a contestant gets eliminated and then the teams face a big challenge when several players switch teams. Following the switch-up, another contestant gets eliminated at the weigh-in.

The contestants face a luxury auction where they bid on flashy or functional items they can use during the week, where one of the items include a one-on-one workout with Bob. The contestants are back on the beach where they work as a team for a chance to win letters from home and spending the day on a yacht. Following each competition, a contestant is sent home.

The teams compete in a competition where the winner decides who gets to go home for a week from both sides; the teams are broken up and wearing their individual jerseys. After facing their first individual challenge, they get a guys and girl's night out and start to sow some wild oats. Two players are eliminated; one a victim of the red line, and one being voted off after falling below the yellow line.

It is makeover week and the remaining contestants get style makeovers by Tim Gunn and Ken Paves. Following their style transformations, the contestants get the opportunity to show off their new looks to their families. Before the contestants' loved ones go back home, they go back to the ranch with their loved ones and get to participate in their last chance workout. A contestant gets voted off.

The winner of a challenge will be faced with a potentially game-changing temptation; the contestants participate in a tradition in which they experience putting their weight back on and then losing it again.

The contestants return for the live finale. The ones were sent home through the course of the season step on the scale to see who will be the "at home champion." Roberto, Steven, and Colby step on the scale to see who will be crowned the "Biggest Loser."

Twenty former athletes, including NFL players and Olympic gold medalists, try to change their lives and get healthy on the new season that also features new trainers Jessie Pavelka and Jennifer Widerstrom joining veteran trainers Dolvett Quince and Bob Harper. The contestants are led by former NFL players Scott Mitchell (12 seasons in the NFL) and Damien Woody (two-time Super Bowl champion with the New England Patriots), as well as Olympic gold medalist and former professional tennis star Zina Garrison. Other contestants striving for weight loss include former WNBA standout Vanessa Hayden, three-time Olympic gold medal softball player Lori Harrigan-Mack, and a mix of former college and high school sports standouts. Season 16 also features trainer Bob Harper in an exciting new role, giving contestants a second chance at life on the show. Just when the eliminated contestant each week thinks they are headed home, they will actually be whisked away to a secret location called "Comeback Canyon." There they will be trained by Harper, competing at a separate secret weekly weigh-in for the chance to return to the competition and a shot at "The Biggest Loser" title and $250,000 grand prize.

Week two begins with the trainers and contestants getting to know each other and reveal more about themselves, with the exception of one player who refuses to talk about what led to her weight gain. This week's challenge has contestants busting through "walls of excuses" and racing through an obstacle course while carrying a punching bag, with the winning team getting a prize that none of the players want to be without. Then Dr. Huizenga meets one-on-one with contestants to reveal the results of their medical exams and what the future holds if they don't lose weight, leading one contestant to storm out of the room when the truth is too hard to hear. Later, the weigh-in at the ranch reveals which contestant will be headed to trainer Bob's Harper's "Comeback Canyon," while the weigh-in at "Comeback Canyon" ends with one contestant leaving the competition for good.

The contestants compete in two challenges this week to gain pound advantages at the weigh-in. The first challenge tests their nutrition knowledge, with their trainers consuming food for each incorrect answer. The "Wall of Glory" is revealed in the gym, showing contestants when they were top athletes, inspiring them to work ever harder in the gym. Then trainers Dolvett Quince, Jessie Pavelka and Jennifer Widerstrom help out at an endurance challenge before a weigh-in determines who will be headed to the surprise "Comeback Canyon" location with trainer Bob Harper and which of Bob's two eliminated contestants will be headed home.

This week kicks off with a "Lottery Challenge," where one contestant is randomly chosen to go home with their trainer for the week. But the pressure is on when they find out their weight will be the only weight that counts for their team this week on the scale. While the chosen contestant deals with the emotional issues at home that caused them to gain weight, the remaining team members try to stay on track at the ranch without their trainer. Later, the two eliminated contestants at "Comeback Canyon" compete to stay there one more week, while the ranch weigh-in finds one player making the ultimate sacrifice for their team.

All athletes dread the thought of being benched or sidelined from a game, and this week's challenge gives the winning team the power to sideline one player from an opposing team so their weight won't count at the weigh in. And the challenge comes with high anxiety as the players are suspended in the air racing to cross a canyon and put together a puzzle when they're done. Everyone has to step it up this week to avoid the dreaded red line elimination, because they won't know which player is chosen to sit out until they get to the scale. After the weigh-in, the eliminated player is thrilled to learn they have a second chance at Comeback Canyon, while the eliminated contestant at Comeback Canyon heads home for good..

The contestants return to the Los Angeles Coliseum this week, where their journey began, to face their first temptation - a tailgating challenge. Each player enters a tent filled with stadium food favorites, and has to decide whether to consume the high-calorie food and possibly win the coveted prize of immunity, or walk away from the temptation eating nothing. Later, one player opens up to his trainer about issues from childhood that have continue to take an emotional toll, while one of Bob's 'Comeback Canyon' contestants gives him a very special gift. Then a red line at the weigh-in sends one contestant from the ranch to a surprise second chance at Comeback Canyon, while one of Bob's two eliminated contestants there heads home for good.

A challenge at the beginning of the week causes quite a splash as the red, white and blue teams have to hold a certain percentage of their body weight to keep their trainers from falling into a pool. The team that drops their trainer first loses them for the week, while the team that drops their trainer second will only have their trainer at the last chance workout. While the two teams without their trainers try to rise to the challenge at the ranch, Bob Harper tries to get his two eliminated contestants to work together as a team at Comeback Canyon. And one contestant takes a trip away from the ranch and gives her trainer a glimpse of her "glory days." Then a weigh-in full of surprises - including one player reaching "One-derland" - ends with one contestant falling below the dreaded red line, but thrilled to get a second chance at Comeback Canyon.

It's eight weeks in to the competition, and the remaining contestants have already lost almost 700 lbs. But this week it might prove harder to stay on course when a challenge involving giant treadmills over water gives the winning team the opportunity to assign penalties to the two losing teams. One team is tasked with cleaning duties that must be finished before they can access their trainer and the gym, while the other team is sent without their trainer to a city full of temptations - Las Vegas. Meanwhile, at Comeback Canyon, trainer Bob Harper tries to convince his two contestants to make their health a priority rather than always taking care of others first. Then the player who falls below the red line at the ranch weigh-in and feels unprepared to return home is thrilled to get a second chance at Comeback Canyon, while the weigh-in there sends another contestant home for good.

It's the halfway point in the competition and contestants get the exciting news that three NFL legends - Super Bowl champs Michael Irvin, Donald Driver and Willie McGinest - will be joining them this week. First, they'll be part of a football challenge in which a trainer and contestant from each team must catch footballs from the NFL legends - while tied together. And the stakes are high, because the winning team gets the coveted prize of video chats with loved ones. Later, the NFL players join the trainers in the gym and have fun putting their own spin on coaching the contestants. Then a red line at the weigh-in puts all the players on edge, while the Comeback Canyon weigh-in sends another contestant home for good.

Week 10 on the ranch comes with a big surprise, when the original red, white and blue teams are disbanded, and contestants have to form all new teams decided by chance. Moving on to another trainer proves to be a difficult adjustment, especially for one player who struggles to accept the change. Then it's time for a cooking challenge with celebrity chef Rocco DiSpirito, who judges which team makes the healthiest and tastiest dish and awards the winning team a valuable one pound advantage on the scale. Later, one trainer bids a tearful goodbye to their player who falls below the red line, while the eliminated contestants at Comeback Canyon face off on the scale to see who will spend another week with trainer Bob Harper

This week is all about teamwork as the eight remaining contestants must work together to lose at least 50 pounds collectively so everyone can remain at the ranch for another week. If they don't reach that goal, someone will be going home. A sand pile challenge that requires a big team effort gives the players the opportunity to win a substantial weigh-in advantage. Later, while hiking with their trainers, the contestants take time to celebrate their accomplishments and vocalize their intentions as they move forward on their weight loss journeys. Meanwhile, at Comeback Canyon, two fierce competitors vie for the chance to stay one more week with trainer Bob Harper. One competitor from Comeback Canyon is ultimately sent home, while the ranch scale reveals whether the eight contestants there are safe for another week.

Host Alison Sweeney surprises the contestants with the news that this week they'll be competing as singles, rather than as teams. In their first challenge as singles, the players must cross an obstacle course, including a mud pit, and complete a memory puzzle at the end for the greatest prize of all at the ranch - immunity. Then trainers surprise the final seven contestants with heartwarming videos of support from players, coaches and family members back home, fueling their fire to keep working hard at the ranch. Later, after a fiercely competitive week at Comeback Canyon, trainer Bob Harper sends one player home for good, while the ranch weigh-in results in a tearful elimination as the contestants vote to send another player packing.

In the first of two special Hawaii episodes, the remaining six contestants are off on the adventure of a lifetime to the breathtaking island of Kauai. There they'll continue the competition and do everything they can to avoid falling below this week's red line. They start their trip at the scenic Waimea Canyon State Park before the trainers put them through an intense workout at Polihale beach. Then, in a Hawaii-style challenge, they all hop into kayaks and paddle out in the ocean to retrieve a bag of puzzle pieces. The finished puzzle reveals the prize for the winner - an incredible, private helicopter tour of Kauai. Later, one trainer and a contestant face their fears together about the open water and try snorkeling, before all the contestants arrive at the beach weigh-in in outrigger canoes to determine who is going home - and who gets to stay in paradise for another week!

The Kauai adventure continues for the remaining five contestants, who tackle their fears head on this week. Dolvett encourages one player to push past his fear and join him rapelling down a waterfall, while Jessie takes another on a rope-swinging adventure in the jungle. Then it's time for a fun, Hawaiian-style challenge, a Lacrosse-inspired obstacle course with coconuts that will reward the winner with a one-pound advantage on the scale. Meanwhile, at Comeback Canyon, two players also have to face their fears in a balancing challenge 25 feet up in the air before a weigh-in sends one player home for good. Then the contestants leave Kauai and head back to the ranch, where a red line at the weigh-in determines which player is eliminated.

The contestant have made it to the fan-favorite makeover week in an exciting episode that also brings game-changing surprises. Fashion expert Tim Gunn and celebrity hairstylist Ken Paves return to create more inspirational transformations, working their makeover magic on the final four ranch contestants as well as the two eliminated players at Comeback Canyon. After the ranch contestants get incredible new looks, they are reunited with their loved ones on a downtown rooftop overlooking Los Angeles. It's a magical night that also features a surprise live performance from popular singer/songwriter Gavin DeGraw, performing his hit solo, "Fire." Meanwhile, the made-over Comeback Canyon contestants are treated to emotional reunions with their loved ones separately, 15 weeks after leaving home. And the stakes have never been higher at Comeback Canyon, because this week's weigh-in winner will be joining trainer Bob Harper in his long-awaited, surprise return to the ranch, bringing his Comeback Canyon champ to join the competition. And that's not the only surprise awaiting the contestants at this week's weigh-in.

Trainer Bob Harper has finally returned to the ranch, and this week he reveals which player he is bringing back from Comeback Canyon to rejoin the competition. While the four other finalists are excited to see their friend, they are also more determined than ever to stay in the competition. One contestant struggles with this new curveball in the game, while another shares concerns with their trainer about being able to continue their new healthy lifestyle once they get home. Later, it's time for a rowing and basketball challenge that awards the winner a one-pound advantage, a valuable prize at weigh-in as the final five become the final four.

It's the last week on the ranch for the final four contestants, and time to celebrate just how far they've come on their weight loss journeys. They'll return to the Los Angeles Coliseum where their journey began for a challenge requiring them to put all of their lost weight back on and drop it incrementally at 16 stops as they did each week, while running up and down the Coliseum steps. The winner gets a cash prize plus a valuable weigh-in advantage when the stakes have never been higher. The finalists also watch emotional journey packages with their trainers, revisiting the memorable milestones of their time at the ranch. 'Today' show lifestyle and fitness correspondent Jenna Wolfe visits as guest trainer, leading the contestants while pregnant through an intense, 'no excuses' workout, while Bob Harper puts the other three trainers - Dolvett, Jennifer and Jessie - through an intense workout of his own. And season 15 contestant Ruben Studdard appears in a 'Challenge America' segment before the final weigh-in at the ranch reveals the three finalists of season 16 who will be competing for the grand prize of $250,000 and the title of 'The Biggest Loser.'.

Contestants from this season reunite and reveal how much weight they've lost; the at-home winner is revealed; the grand-prize winner is announced.

ASON 15 - "The Biggest Loser" returns with 15 inspiring contestants - including the show's first celebrity player, Ruben Studdard, an uplifting "Second Chances" theme and powerful new roles for trainers Bob Harper, Jillian Michaels and Dolvett Quince. For the first time ever in the show's history, trainers sat in on casting sessions and helped select the new contestants, and also received a "trainer save," allowing each one to save one eliminated contestant from going home. Contestants eager for a second chance to reclaim their health and re-write their futures include "American Idol" winner Ruben Studdard, this season's heaviest contestant at 462 pounds, David Brown, who lost his first wife to an almost decade-long battle with cancer and is now fighting for his life so he can be there for his daughters, and Tanya Winfield, a single mom addicted to food who grew up with a teenage mom addicted to drugs, who is eager to break the cycle of addiction in her family. Also competing this season will be Olympic weight lifter Holley Mangold, hoping to get in the best shape possible for a second chance at gold in the 2016 Olympics, and Matt Hooper, who postponed his wedding to be on the show so he could give his fiancé the best physical version of himself.

The dreaded "week 2 curse" is on all the players' minds, especially when they learn that only one person's weight on each of the three teams will count at this week's weigh-in. And they won't know who it is beforehand, only when a roll of the die at the scale determines who will represent the red, white and blue teams. One lucky group will get a weigh-in advantage if they win the first challenge of the season, a water-bucket race that ties each team's fate together in more ways than one. Also this week, one player gets sobering health news from Dr. H, another contestant connects with a very special family member and the show catches up with one of last season's popular child ambassadors to see how they are doing now.

This week, the contestants are surprised to find that the gym is empty - and the only equipment they'll be able to use is equipment they've successfully bid on with "Biggest Loser" bucks in the show's first ever auction, run by host Alison Sweeney. Trainers Bob, Jillian and Dolvett and the players have to get creative to make the most of their limited equipment. Later, one player opens up to her trainer about her difficult childhood, and all of the contestants re-charge their spirits with a very special treat - getting to skype with their loved ones back home in emotional, heartwarming family visits. Then it's time to head to the gym for a very emotional weigh-in. Also this week, the show catches up with season 12 fan favorite Vinny Hickerson.

It's Halloween at the ranch, and that means a pumpkin challenge and the contestants' first temptation of the season. Off the players go into a field of 100 pumpkins filled with candy treats, cash prizes and a winning ticket giving one lucky player one of the biggest prizes ever awarded in a challenge - immunity for their whole team. Later, one trainer brings a special group of people to work out with his team, while another trainer has a heart-to-heart talk with a contestant about their challenging childhood. "The Biggest Loser" catches up with last season's child ambassador, Biingo, to see how his life - and the lives of his family members - have changed since he was on the show. And later, the players get a motivational boost with coveted letters from home before heading to the weigh-in, where another player is eliminated.

Last season's kid ambassadors Biingo, Lindsay and Sunny return to the ranch and are joined by the White House Senior Policy Advisor on Nutrition, Sam Kass, for a fun cooking challenge with the contestants. Well aware that kids are often the toughest food critics, the red, white and blue teams race against the clock to prepare a nutritious and tasty dish that will be a hit with the kids - and earn the winning team members an incredible prize. Also this week, one team works out with a very special and inspiring group of women who have survived or are battling cancer. Later, it's time for the weigh-in and saying goodbye to another contestant.

It's a busy week at "The Biggest Loser" ranch, which kicks off with a fun bouncing ball challenge that will award members of the winning team a welcome cash prize. All of the contestant take an emotional walk down memory lane watching their casting audition videos, reminding them why they are at the ranch -- and how far they've come in just six weeks. Ruben and Dolvett visit music icon and 16-time Grammy Award winner David Foster at his home, where Ruben isn't the only one stepping up to the microphone. And the show's most recent "Biggest Loser" winner, Danni Allen, stops by for lunch and a pep talk with the contestants. Then it's time for another tense weigh-in, where one more contestant will face elimination.

The contestants celebrate Thanksgiving week with a special challenge - racing to load boxes of Thanksgiving food into trucks headed to help tornado victims in Moore, Oklahoma, where one player has a special connection. Members of the winning team are very thankful for their prize - a holiday dinner shared at the ranch with loved ones flown in for the celebration. Emotional reunions follow, as the winning team, their trainer and their family members gather for a Thanksgiving feast and share what they are most grateful for. Also, one player gets encouragement from his trainer to talk to his family about a long-kept secret, and the show catches up with one of season 14's child ambassadors, Sunny, to see how she is doing today. Then it's time for weigh-in and another elimination, which leaves one trainer giving a very tearful and emotional farewell to one of their players.

Host Alison Sweeney kicks off this week's episode with a shocker - one of the contestants is going home and taking their trainer with them, and their weight will be the only weight that counts for their team when they return in time for the weigh-in. A simple spin of the wheel determine who will be chosen among the players, who would love to reunite with loved ones but are understandably anxious about the intense pressure they'll face trying to lose enough weight to keep their whole team safe another week. Meanwhile, one trainer brings their contestant back to a sport they once loved, and two players celebrate milestones at the weigh-in before another contestant is sent home.

This week, the contestants take a pop quiz about obesity in the workplace after meeting host Alison Sweeney in a diner. The location proves significant since that's where the losing team will be working all week while still trying to eat healthy and exercise with much busier schedules. While the losing team stays busy waitressing, cleaning up, doing dishes and squeezing in workouts, they still find time to bring "treats" from their day job back to the ranch to tempt other players. Meanwhile, one trainer works closely with his contestant to determine what has been holding him back from bigger weight loss numbers, and another tries to help one player's family member get started on the path to a healthier lifestyle. Then it's time for another contestant to head home after a weigh-in that yields surprising results. .

The 10 remaining contestants reach a milestone this week, as the competition goes from teams to singles. Wearing their new individual color shirts, the players meet host Alison Sweeney for a night-time "ring of fire" endurance challenge that involves holding a percentage of their individual weights. Alison also shares exciting news about an upcoming event that will be a "Biggest Loser" first for contestants, and sobering news that this week's weigh-in will end with a double elimination. Now that the teams have been disbanded, trainers Bob, Jillian and Dolvett are eager to switch it up and work out with new contestants this week. One player struggles with self-sabotaging negative thoughts, and two contestants make it to the coveted "One-derland" at weigh-in and say goodbye to weighing over 200 pounds. Then it's time for the dreaded red line, which will determine which two players will be going home.

This week kicks off with all of the eliminated contestants returning to weigh-in, and one lucky player getting the chance to return to the competition. Then it's off to a grueling kettle bell beach challenge that promises the winning player a hefty prize. Fan favorite and former "Biggest Loser" contestant Abby Rike pays a visit to the ranch and inspires the players with her own "Second Chance" story. Later, the contestants head to the race track for words of encouragement and a fun workout with popular NASCAR driver Carl Edwards. Then one player reaches "One-derland" at the weigh-in and another is sent home before host Alison Sweeney gives the remaining contestants some very exciting news.

The contestants are off on the adventure of a lifetime, headed to Utah Olympic Park in Park City, Utah, where they'll train like champions and get to meet some incredible Olympic athletes. Dolvett introduces the players to Olympic gold medalist Apolo Ohno, who talks about his own "Second Chance" - this season's theme - and works out with the contestants inside the spectacular Olympic Oval arena. Then the contestants get to compete in the sport of curling, after an introduction to USA Curling team members Jessica Schultz, Debbie McCormick and Anne Swisshelm. The fun continues at the base of the bobsled track, where words of motivation from USA Bobsled Team members Lolo Jones and Jazmine Fenlator get the remaining seven players fired up about the fast-paced sport. But for this week's challenge, they won't be racing down the track. Instead, they will be running more than a mile up the bobsled track, a challenge made far more difficult by the elevation of over 7,000 feet. Also this week, Bob designs an Olympic-inspired workout that puts all the players to the test, and Jillian tries to help a contestant still struggling to embrace her self-worth. Travelling and being away from the ranch environment leaves many contestants worried about their weight loss this week. Those fears intensify at the weigh-in, where surprising results push two players below the yellow line and the other contestants must decide which player is going home.

It's one of the most eagerly-anticipated episodes of "The Biggest Loser" season -- the makeover episode! The fun begins with fashion expert Tim Gunn, who works his magic helping the contestants select stylish new outfits to flatter their new slimmer selves. Then celebrity hairstylist Ken Paves, whose clients have included Jennifer Lopez, Victoria Beckham, Lady Ga Ga and Eva Longoria, crafts incredible new looks for each of the remaining seven contestants, leading to amazing and dramatic transformations. Then they are whisked away to enjoy a special night out and heartwarming, emotional reunions with loved ones flown in to celebrate their big day. Later, it's back to reality and the ranch, where two players fall under the red line at the weigh-in and are eliminated, revealing the final five contestants of the season.

The stakes are higher than ever when the five final players compete in a "Biggest Loser" first -- a sprint triathlon, requiring them to swim - a mile, bike 12 miles and run three miles. The triathlon winner will secure a coveted spot as a finalist, as well as a brand new Ford Fusion. Then it's an emotional trip down memory lane as the contestants watch footage of their journeys with their trainers, and see firsthand how far they've come since arriving on the ranch. Later, it's time for the last weigh-in before the finale, where two players will fall below the red line and go home, and two more will become finalists, joining the triathlon winner to compete for $250,000 and the title of "The Biggest Loser" at the season 15 finale.

In this must-see, exciting live finale, the 15 contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. Those who have been eliminated will compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000.

In a season unlike any other, NBC's "The Biggest Loser" takes on child obesity by featuring kid participants for the first time ever on the show, joining 15 fiercely determined adults eager to lose weight and change their lives forever. The focus for the three kids - 13-year-old baseball enthusiast Biingo, 16-year-old honors student Sunny, and 13-year-old former cheerleader Lindsay -- will be on getting healthy rather than numbers on a scale, so they will not be eligible for elimination and will not weigh in on camera. They will work at both the ranch and at home, and their progress will be featured in every episode. New mother Jillian Michaels is also back, ready to whip contestants into shape with her tough-as-nails, no nonsense approach, alongside returning trainers and top fitness experts Bob Harper and Dolvett Quince. Contestants include a high school special education assistant and mother of four, a former college football player and the show's first openly gay contestant, who was bullied for both his weight and his sexuality when he came out at age 14.

This week, the contestants are encouraged to "Get Moving," and find themselves pushed to new limits when they are introduced to the new outdoor gyms that each trainer has custom designed. The stakes are high, with another red line looming for whoever loses the least amount of weight, and the dreaded "week 2 curse" that has instilled fear in all the contestants. Dr. H visits the ranch, giving the adult players an eye-opening wake-up call about just how unhealthy they really are, and one trainer has a heart-to-heart talk with their team to try and get them on track. Later, NFL star and San Diego Chargers tight end Antonio Gates cheers on the adult contestants and kids at a football-themed challenge testing the speed, agility and strength of the adults as they compete for a special prize for the child on their team. Plus, the trainers do a special fitness test with the kids and season 10 winner Patrick House makes a special appearance before the dreaded red line at an emotional weigh-in sends another player home.

"Cutting the junk" is this week's theme, and the players begin with a trivia challenge testing their knowledge about childhood obesity. The losing team will have to spend 4 hours each day - the amount of time the average kid spends watching TV - in a room surrounded by junk food, soda and video games. Meanwhile, Dr. Joanna Dolgoff, "The Biggest Loser" childhood obesity expert and pediatrician, travels to the homes of kid participants Sunny, Lindsay and Biingo, to help the kids and their families cut the junk food and get on track with healthy eating. Then it's one of the show's craziest challenges ever when contestants have to race through a gooey bubble gum pit carrying 10 pound balls to win an amazing prize that everyone wants. Later, after a tense weigh-in, the players enter the show's new voting booth to decide which contestant will be going home.

The contestants are on their own this week when trainers Bob, Jillian and Dolvett leave town to surprise kid participants Biingo, Lindsay and Sunny and their families with a visit to their hometowns. Some players struggle without their trainer, but others rise to the occasion, and an unexpected leader emerges. In honor of this week's "Pay it Forward" theme, contestants run a 5K and money is donated to a local Boys and Girls Club, with the winning team earning $15,000 to split among themselves. The trainers plan special surprises for each kid in their hometown before returning to the ranch in time for last chance workouts, when Jillian has a run-in with a player on another trainer's team. Later, the weigh-in brings welcome news to one player who has been struggling, before another player is sent home.

This week kicks off with the players returning from a workout, only to find that the kitchen and refrigerators are empty. Tasked with trying to affordably stock the kitchen with a week's worth of healthy food, the contestants race against time to make healthy purchases within their budget at a grocery. Later, one contestant struggles to keep trying her best despite weight loss setbacks, while Dr. H and one of the trainers help a contestant realize the importance of addressing the emotional issues that contribute to weight gain. Trainers Bob, Jillian and Dolvett skype with kid participants Biingo, Lindsay and Sunny, and then a swimming challenge puts the players to the test as they compete for one of the most coveted prizes of all. Finally, a tearful elimination sends another player home.

It's the halfway point in the season, and the contestants find out that the weight of only one player on each team will count this week, but they won't know who it will be until the weigh-in. With this week's theme of "Leading by example," trainers Bob, Jillian and Dolvett skype with kid participants Biingo, Sunny and Lindsay, and motivate each one to do just that. While Sunny creates a circuit training routine for her fellow classmates, Biingo tries to recruit more friends to his after-school sports club. Lindsay gives an anti-bullying speech to her peers, joined by special guest Cody Simpson, who also talks about his experience being teased before performing for the kids. The adult contestants compete in a crazy challenge requiring them to avoid three swinging pendulums while walking on a balance beam to retrieve calorie-coded plates matching five specific dishes. Later, during last chance workouts, Dolvett's team has a special visit with five-time undefeated world champion fighter Laila Ali, who put them through a fun and challenging boxing workout.

It's halfway through the competition, and the remaining eight players go to singles this week. The contestants face their first temptation in honor of Valentine's Day, featuring favorite Valentine's Day treats and the promise of the winner getting a weigh-in-advantage for themselves and a friend. Meanwhile, the trainers continue to motivate the kid participants to stay active and work toward their goals at home. Jillian arranges for Sunny to take a Bollywood dance class, Dolvett motivates Lindsay to attend a cheerleading practice, and Biingo anxiously waits for news from the doctor about whether he'll be able to start practicing for the youth baseball league tryouts that Bob set up for him. Back at the ranch, one player displays an amazing act of kindness, and another has an emotional, heart to heart talk with a trainer about the circumstances leading to his weight gain. Later, a racing challenge leads to two players winning heartwarming reunions with loved ones, and in this week's Challenge America segment, Season 11 winner Olivia Ward and her husband share a healthy way that couples can celebrate Valentine's Day. And finally, the elimination following the weigh-in forces one contestant to make their most difficult choice yet at the ranch.

The players learn they'll have the chance to win immunity for all this week if they lost a collective 70 pounds. They have a chance to shave 10 pounds off their total with the help of returning kid participants Biingo, Lindsay and Sunny, whose brains and brawn are tested in a pop challenge. With emotions and tensions at an all-time high, this week's theme of "working together" might be a tougher challenge than losing the amount of weight that will keep them all safe for another week. Two contestants clash, as do Jillian and one of the players that she feels is not performing at the level she should be. But all the contestants will have to work together in an exhaustive sand-digging challenge that could give them another weigh-in advantage. And the trainers and players participate together in an intense team-building challenge, forcing them all to rely on and trust one another. Also this week, Subway's Jared stops by for lunch and a pep talk, and Jillian and the kids sign Seventeen's "Body Peace Treaty," encouraging self-esteem and body acceptance, before a tension-filled weigh-in reveals whether they'll all be safe - or have to send another player home.

It's "Face Your Fears" week, and the fear of leaving the ranch is the first one addressed when a "save your neighbor" challenge determines which contestant has to leave the ranch and go out on their own for the week - along with another player of their choice. One by one, with the help of trainers Bob, Jillian and Dolvett, each contestant is forced to face their fear - ranging from a fear of sharks to claustrophobia to a fear of singing in public. And they all face fear in a harrowing challenge off the top of a seven-story building that will reward the winner with the most coveted prize of all. Back at home, the kid participants are also facing their fears head on. Sunny's very real fear of losing her Mom due to her mother's weight prompts her to have a very difficult and emotional conversation, while Dolvett arranges for pre-diabetic Lindsay to face her fear of developing the disease by meeting someone with diabetes and learning about their daily challenges. On the lighter side, Biingo faces his fear of eating vegetables! Later, the weigh-in will reveal how the two players out on their own did this week, and will also determine who is leaving the ranch for good, leaving the final five contestants of the season.

It's the eagerly-anticipated makeover week for the final five contestants, who also get the promise of immunity at the next weigh-in if they each lose a certain percentage of body weight. The makeover fun begins with fashion expert Tim Gunn, who works his magic helping the contestants pick out stylish new outfits to flatter their new slimmer selves. And celebrity hairstylist Ken Paves crafts incredible new looks for each player, leading to amazing and dramatic transformations. Then for the first time ever in "Biggest Loser" history, the contestants will all go home for their makeover reveals, where family and friends will all gather to celebrate their transformations in heartwarming, emotional reunions. Later, back at the ranch, the anxious contestants weigh in to see if they all lost enough weight to keep everyone safe from elimination.

It's down to the final five and the stakes have never been higher. This week, a red line will determine which contestant is going home, and a yellow line will determine which two players America will vote for to determine who the third finalist will be for season 14. But first, the contestants compete for a weigh-in advantage during a "put their weight back on" challenge, pulling all the weight they have lost up a mountain by sled, and then dropping weights incrementally representing how many pounds they lost each week. Kid participants Biingo, Lindsay and Sunny return to the ranch and see just how far they've come watching videos of their journeys alongside the trainers, and later get an update from child obesity expert and pediatrician Dr. Joanna Dolgoff on their great progress. The adult contestants also watch emotional highlights of their weight loss journeys and get impressive health updates from Dr. H. Then it's time for the last weigh-in on the ranch, determining who is sent home and who the final four players are for season 14.

In this must-see, exciting live finale, the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. Kid participants Biingo, Lindsay and Sunny will also return to show off their inspiring transformations. America's vote will be revealed for who will be the third finalist, eligible for the grand prize, and all the players who have been eliminated will compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!.

A new batch of couples arrive at the ranch and are shocked to learn they'll be split up to compete against each other in the Season 13 premiere. The new round has a "No Excuses" theme, and the trainers address the reasons the contestants are overweight.

The teams bet on the percentage of weight they think they'll lose in order to gain an advantage at the weigh-in. Elsewhere, the contestants learn to shop for healthful foods; the teams compete in a puzzle-based challenge; and Dr. Huizenga performs sobering health assessments.

A Chinese-buffet temptation offers the winner a two-pound advantage at the weigh-in and an opportunity to match up players for a gym challenge. Later, the teams compete in a water-transfer challenge for the chance to video chat with loved ones; a player makes a shocking decision.

The teams compete for exclusive use of the gym during a battering-ram challenge. Bob and Dolvett, meanwhile, try to get through to contestants they feel aren't putting in enough effort to shed pounds.

The players compete in a trampoline challenge to win the chance to exclude a contestant's weight from the weigh-in. Elsewhere, two eliminated players return for a chance to win a spot at the ranch, and personality clashes cause tension in the house.

One team must work out for a week without the guidance of their trainer, who secretly monitors his players to track their progress. The losing team is determined by a dunk-tank challenge, in which Bob and Dolvett are suspended over water and must rely on the contestants to keep them dry.

Two players visit home with their trainers in tow, and their weights alone count at the weigh-in. Elsewhere, the teams compete in an obstacle course in order to receive letters from loved ones for Valentine's Day; the players at the ranch must fend for themselves, though one contestant turns to nutritionist Rachel Beller for help preparing a special meal.

A temptation-challenge winner reorganizes the teams in an unpopular move that creates tension and suspicion among the players. Elsewhere, the teams race to assemble a large puzzle in order to win a special prize.

The contestants go home for 18 days and have a chance to earn immunity if they lose five percent of their body weight. While some struggle to stay on track, others benefit from the support of family and friends. Also: a home rowing challenge earns the winner $10,000.

This week, the age-old excuse "I'm stuck in my comfort zone" is addressed as contestants are pushed out of their comfort zones by switching trainers for the week. The red team works out with trainer Bob Harper, while the black team burns calories with trainer Dolvett Quince. And one trainer gets out of his own comfort zone by trying ballet with his female contestants! Also, the teams get down and dirty in a 70-foot wide mud pit, filled with various weight plates they have to find in a messy challenge that will give one team a big advantage. Then it's time for the weigh-in, followed by an emotional elimination sending one more player home.

The teams are dissolved, leaving the nine remaining players to compete on their own. Later, a tug-of-war contest finds the contestants competing for a shopping spree with Jessica Simpson; a trainer helps a player face her fear of heights; and a contestant turns the tables on a trainer.

The contestants go to Hawaii to test their ability to lose weight during vacation. During the trip, the players face off in a trivia contest and a challenge involving tikis and leis. Later, surfer Bethany Hamilton gives the gang surf lessons.

Season 12 favorites Antone, Becky and Vinny return to judge a cooking contest and offer the players advice. Elsewhere, the contestants' exercise routines are spiced up with a Zumba class and mountain biking; and the players load food onto trucks during a pop challenge.

The eagerly-anticipated makeover episode is here, and this season, it's bigger than ever! After the six remaining players compete in a challenge by shattering glass pane images of their former selves from week one on the ranch, the makeover fun begins. Fashion expert Jeannie Mai helps each contestant find stylish new clothes to flatter their slimmer selves, but first she shares a very big surprise -- a special video message from First Lady Michelle Obama inviting the players to come to the White House! Thrilled at the chance to go to the White House to meet with the First Lady, a longtime advocate for health and fitness, especially for our nation's children, the contestants have fun choosing their makeover outfits with Mai. Then they're off to the salon of celebrity stylist Ken Paves, who crafts stylish new looks for the players before they head to Washington, D.C. There, at the White House, family members are waiting to surprise them and see their amazing transformations in heartwarming, emotional reunions before they meet the First Lady.

In part two of the series' biggest makeover episode yet, the six remaining contestants get to meet First Lady Michelle Obama, whose Let's Move! initiative focuses on solving the problem of childhood obesity. The First Lady talks to the contestants about how adult behavior impacts kid behavior, congratulates the contestants on being good examples of health and fitness, and visits with each player and their family members. Then it's time for a workout they'll never forget as trainers Bob Harper and Dolvett Quince lead the First Lady, the contestants and their families through "The Biggest Loser's" first ever White House workout. Mrs. Obama also challenges the contestants with a competition to get more Americans healthy and active. Later, Bob tries to help a player who turns to food for comfort to deal with the stress of worrying about a loved one at home, and Dolvett puts contestants through a scenic last chance workout in front of the U.S. Capitol at the Ulysses S. Grant Memorial. Then their amazing trip to D.C. is over and they return to the ranch to weigh-in before another player is sent home.

This week, a surprising turn of events shakes up the competition, and the contestants compete in a rough and wild short version of a "Tough Mudder" competition. But they won't be doing it alone - with them will be the show's three most recent winners John Rhode, Olivia Ward and Patrick House. Host Alison Sweeney helps motivate the remaining contestants by telling them the player with the highest percentage of weight loss at the weigh-in will win a Ford Escape SUV. Later, the players stroll down memory lane with the trainers and watch video journeys of how far they've really come from their first day on the ranch before an emotional weigh-in determines which player will walk away with a brand new car.

The stakes are higher than ever when all the eliminated contestants return to the ranch to compete in a fateful, four-part challenge. The challenge winner will secure a coveted spot as a finalist, and the chance to compete for the $250,000 grand prize, along with the other two finalists revealed in last week's episode. It's a fight to the finish with each player fiercely determined to get back in the game in a competition that will put their speed, knowledge and endurance to the ultimate test. In the end, the third finalist of season 13 will be revealed.

In this must-see, exciting live finale, the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. Those who have been eliminated will compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!.

Season 12 kicks off with two new trainers - internationally renowned tennis star and certified trainer Anna Kournikova and top fitness expert Dolvett Quince - joining "Biggest Loser" favorite Bob Harper, and 15 contestants competing in a "Battle of the Ages" that will group contestants by age for the first time ever in the history of the show. Host Alison Sweeney tells the teams that they will make their first game-changing decision - who their trainer will be - in the order in which they finish the first challenge. Once each team chooses their trainer, "The Battle of the Ages" begins. The new contestants include Vinny Hickerson, who overcame a difficult childhood to become a successful Nashville recording artist, Antone Davis, a 447-pound father of four and former NFL player for the Philadelphia Eagles and Atlanta Falcons, and Bonnie Griffin, a 63-year-old grandmother of six who lost her home to Hurricane Katrina and lost her husband not long after.

This week, the contestants learn that the gym will only be open three times a day, and each team will only have one two-hour time slot daily to work out. A donut temptation will help determine which team gets what slot, and then players have to learn to squeeze in their daily workouts just like in real life. Dr. Huizenga meets with contestants and their trainers for some sobering news about their medical conditions, and one player is shocked to learn what his real inner age is - and that he is the sickest person at the ranch. Then all the teams use their weight to move a ball through a maze over water in a wild challenge that proves to be way harder than it looks. Later, another player is sent home after the weigh-in yields a very surprising number for one contestant.

It's a NFL week at the ranch, and the competition to be the Biggest Loser of the week is fiercer than ever with the weigh-in winner getting an amazing prize - a VIP trip for two to the Super Bowl! Host Alison Sweeney reminds the contestants that if they want to be the best, they have to beat the best at a football throwing challenge in which they compete alongside Green Bay Packers linebacker Clay Matthews, New Orleans Saints quarterback Drew Brees and Atlanta Falcons tight end Tony Gonzalez. One player really struggles emotionally this week, while another remains determined despite being partially sidelined with an injury. There's a grueling, calorie-burning competition among the three teams led by trainers Bob Harper, Anna Kournikova and Dolvett Quince. And later, Denver Broncos quarterback Tim Tebow, Buffalo Bills linebacker Shawne Merriman and Hall of Famer Eric Dickerson help put the contestants through last chance workouts they'll never forget before a tense weigh-in reveals which player gets the coveted Super Bowl tickets.

This week, the contestants are surprised by three special guests - past season contestants Hannah Curlee, Adam Hurtado and Marci Crozier, who each visit and inspire the team that represents his or her respective age group. Then all the players are off to a wild weather challenge in which they have to race while battling the elements - including wind, rain and snow - to win coveted letters from home. The winning team receives an unexpected and very emotional bonus prize. Later, trainer Bob Harper takes his team to the pool for last chance workouts, where one player tries to overcome his fear of the water, while trainer Dolvett Quince pushes his team to new heights in the gym and trainer Anna Kournikova takes her team to a favorite spot - the new "Biggest Loser" tennis court. In the end, the losing team at this week's weigh-in must decide who will be going home.

One player is chosen to go home this week with their trainer, and get the coveted prize of immunity. But the prize doesn't look quite as desirable when the chosen contestant learns that their weight will be the only weight that counts for their team this week. Meanwhile, the players left at the ranch race through a maze to fill a large cylinder with soda in a night challenge that gives the winning team a great "pay it forward" prize. While the trainer who left the ranch devises grueling workouts for their player and worries about the fractured team they left behind, another trainer gets angry with a contestant who is constantly hiding behind humor. And one player boldly confronts her trainer about the way she is being treated. Later, another contestant is sent packing after a tense weigh-in reveals whether the player who went home lost enough to keep their team safe.

For Halloween, the contestants face a crazy candy temptation and a very spooky challenge, while host Alison Sweeney and trainers Bob Harper, Anna Kournikova and Dolvett Quince get in the spirit by dressing up in Halloween costumes. First, the contestants learn they'll all be playing as one team this week and if they collectively lose 100 lbs., everyone will be safe for another week. A cauldron of candy hanging on a Biggest Loser scale tempts the players all week in more ways than one - for every pound of candy eaten, a pound will be deducted from the amount they all need to lose, up to 10 lbs. This week's challenge finds players racing through a haunted maze trying to collect as many apples as possible, with another weigh-in advantage - and disadvantage - hanging over them. With the trainers working out all of the players this week, one contestant has separation anxiety, and one trainer is not amused when the contestants play a Halloween trick on him. Plus, a big secret shared by two contestants is revealed. Later, one player ties a Biggest Loser record on the scale before another contestant is sent home.

The competition shakes up this week when contestants change teams and trainers in a high-stakes, calorie-counting challenge that will determine who each player's trainer will be for the rest of the season. After the teams are re-aligned, dramatic confrontations follow between some players and trainers as they all try to adjust to their new reality. Later, the new teams face their first challenge together - racing down a water slide on a hill to unscramble block letters that reveal the winning team's prize. Trainers Bob Harper, Anna Kournikova and Dolvett Quince each take their teams off the ranch to spice up their last chance workouts, and later, an especially emotional elimination follows a weigh-in revealing noteworthy results from the trainer/team switch.

This week, only one contestant's weight will count for each team, and trainers Bob Harper, Anna Kournikova and Dolvett Quince get to choose which player will represent their teams. The competition heats up with a cooking challenge in which players and their trainers have to race against the clock to prepare a healthy and delicious low-calorie dish for two special judges - season 11 "Biggest Loser" winner Olivia Ward and "Biggest Loser" cookbook author Devin Alexander. Prizes for the winning team include something very special from home. Dr. Huizenga drops by with a special medical guest to visit with the players and give one contestant some very welcome news. And later, the weigh-in reveals whether each trainer chose the right person to represent their team before an elimination leaves one player feeling very betrayed.

The competition heats up as host Alison Sweeney tells the remaining seven players that they will be competing in a pentathlon - and they can only rely on themselves because this week, the game goes to singles. Contestants will earn points in each of the five events, which will test everything from speed to strength to nutrition knowledge. The pentathlon winner gets the coveted prize of immunity, while the loser gets a weigh-in disadvantage. The players get a very special surprise when eight-time Olympic medalist Apolo Ohno arrives to lead the contestants through their final event, motivating them each step of the way. Also, one of the trainers reveals details about their difficult childhood to a contestant who is struggling with trust issues. And later, the weigh-in is followed by the most emotional elimination of the season so far.

The contestants start their week with a holiday food temptation involving Thanksgiving favorites and amazing prizes, including a coveted 3 lb. advantage. Later, trainers Bob Harper, Anna Kournikova and Dolvett Quince prepare a healthy Thanksgiving dinner for the players, and everyone shares what they are most thankful for, with one trainer sharing a surprising revelation. Then it's the toughest challenge of the season so far with an outdoor, one-mile high climb on Jacob's Ladder treadmill climbers. The top finishers win special prizes with a "Pay it forward" twist. Later, one contestant does something considered uncharitable by the others, leading to friction at the elimination table before another player is sent home.

In this eagerly-anticipated makeover episode, the five remaining players head off to a luxury spa to get pampered before shopping for stylish new clothes in Beverly Hills with fashion maven Jeannie Mai. Then in-demand Hollywood hairdresser Ken Paves crafts stylish new looks for the contestants before a limousine whisks them away to see Cirque Du Soleil's "Iris." But before the show begins, each player gets a heartwarming reunion with a loved one flown in to celebrate their big day and see their amazing transformation. Later, back to reality and the ranch, the contestants weigh in and one more is eliminated, leaving the final four players of the season.

The stakes are higher than ever when all the contestants return to the same spot where they had their first challenge to compete in a marathon. For the first time in the show's history, the contestant who wins the race automatically becomes a finalist, eligible to compete for the $250,000 grand prize. But there's extra incentive because the first five players who finish the race will also get to split $50,000. The only way to guarantee a spot in the finals is to either win the marathon - or be one of the contestants who stay above the red line at the weigh-in. In the end, the three finalists of season 12 will be revealed.

In this must-see, exciting live finale, the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. Those who have been eliminated will compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!.

Two new trainers and a compelling new twist deliver a game-changing season like nothing viewers have seen before when season 11 premieres with twenty-two contestants -- eleven family and friend teams of two. After the first challenge, contestants are given the unprecedented opportunity to choose whether to work out with trainers Bob Harper and Jillian Michaels at the ranch - or work out at a secret location with two unknown trainers and get four weeks of immunity. What ensues is a riveting ride of intense emotions, surprising turns and "can't miss" moments as the two groups fight their weight loss battles separately with two sets of trainers equally committed to giving these players a new lease on a healthier life. The contestants include an Olympic gold medalist, identical twin policemen, a pastor who wants to spare his overweight son from the challenges he faced because of obesity, and a woman who has lost pregnancies because of her weight and wants more than anything to be a mother. Alison Sweeney hosts the series.

This week kicks off with host Alison Sweeney issuing a challenge to the ranch-based contestants: if they have a higher percentage of weight loss than the "unknowns" - the contestants working out with the two new mystery trainers -- they'll all have immunity this week. The "unknowns" fuel the competitive spirit by delivering messages and surprises to the contestants at the ranch reminding them just how tough their competition really is. Then Dr. Huizenga gives sobering news to contestants about their health risks and their real ages vs. their chronological ages, but this time, loved ones from home are involved to really help drive the message home. Later, the ranch contestants' ability to work together as a team is tested when they try to beat the time of the unknowns in a wild bridge-building challenge using rafts. Then a tense weigh-in reveals whether the ranch contestants are safe from elimination, or whether they'll be sending another player home.

The "unknown trainers" are finally revealed, and both will share their personal stories that led them to "The Biggest Loser." Their contestants, "the unknowns," confront one player they feel isn't working hard enough, and later, "the unknowns" and the ranch contestants square off for a pop challenge. The winning player from each group will get a delicious healthy dinner prepared by Chef Curtis Stone, and compete for a coveted 2 lb. advantage at this week's weigh-in. Later, Dr. Huizenga gives "the unknowns" startling news about their health, and one player is surprised to learn they have the highest percentage of body fat in the group. Meanwhile, trainers Bob Harper and Jillian Michaels single out a few of their contestants to find out what really led to their weight gain, and then the ranch contestants meet host Alison Sweeney for a water-carrying challenge that will give the winner the sole vote at this week's elimination. Later, a surprising weigh-in -- which results in shocking numbers for one team -- disappoints the trainers in a big way, leading to the elimination of one player they feel isn't ready to go home.

The contestants are faced with the "ultimate temptation" this week when each team enters a room filled with each player's favorite foods. Whoever eats the most calories gets to choose which team will go train with the "unknowns" and the new trainers. Later, the stakes are high with a calorie-counting challenge that will give the winners what they want most - letters from loved ones back home. The trainers confront a contestant they think threw the last weigh-in, and later, trainer Jillian Michaels puts trainer Bob Harper through an intense yoga workout to show the players what they'll ultimately be able to do once they lose weight. Then one player takes matters into their own hands to try and send a contestant home.

After four long weeks, the "unknowns" move to the ranch and are reunited with the other contestants, who get to meet the new trainers for the first time. Host Alison Sweeney explains that the ranch contestants will be safe this week if they collectively lose more than 48 pounds, but for the "unknowns," they will be facing their first elimination all season. And both teams only get to see their trainers once this week. The "unknowns" experience some surprises while settling into their new home, and a secret is revealed about how one contestant has lost so much weight. A challenge involving weights shows which team stacks up to be the best, and later, everyone weighs in and finds out whether one or two players will be going home.

It's Valentine's Day on the ranch, and host Alison Sweeney ushers the contestants into a room full of chocolate candies for a holiday-themed temptation. Whoever eats the most chocolate will have the option to trade two players on their team for two players on the other - or to keep the teams the same, and the winner will be a secret. But as teams are divided into red vs. black, the winner's choice causes upset in the house. Later, a five-part relay race challenge tests the players' endurance, speed, agility, strength and knowledge. Trainer Jillian Michaels takes one contestant horseback riding, and one team gets to enjoy heartwarming videos from home before a weigh-in results in a Biggest Loser record being broken and another player heading home.

The two teams of contestants are all tied up this week - literally - in a rope challenge in which teamwork will determine which group of players will get to use the gym this week, and which team will have to be creative and find other places at the ranch to work out. One trainer moves into the house to try and get a contestant to open up, and later, one team wins the chance to block someone's weight on the scale at a wild physical and mental challenge that finds them pushing a train 800 feet while answering food fact questions along the way. Then one player reaches a milestone at the weigh-in before another contestant is eliminated and sent home.

A ball challenge that turns out to be much harder than it looks gives the winning team a big advantage at this week's weigh-in, which is especially valuable given that both a red line and a yellow line will result in two players going home. Trainers Bob Harper and Jillian Michaels try to teach their contestants to push beyond the limits they've set for themselves, while trainers Cara Castronuova and Brett Hoebel take their team for an intense workout at a Mixed Martial Arts gym owned by contestant Rulon Gardner's former trainer, retired UFC heavyweight champion Bas Rutten. Then a weigh-in filled with surprises is followed by two contestants leaving the ranch.

The contestants are excited to hear from host Alison Sweeney that they will all be going home for two weeks. Each player returns home to emotional reunions with friends and family, after which they navigate the challenges of being back in their real lives, facing the same temptations that brought them to the ranch and realizing all of the things they are capable of doing now that they couldn't do before. When they come back to the ranch, they'll compete in a 5K challenge on a treadmill just as they did in the first episode of the season, but this time, they're going to run the 5K all by themselves. And just as before, each will pick who they want to train them - Bob Harper and Jillian Michaels or Cara Castronuova and Brett Hoebel - in the order in which they finish the challenge. Then a few contestants reach milestones at the weigh-in, after which another player is sent packing.

Each team has to pick a team captain, who will have many responsibilities during the week, and only two players from each team can work out with a trainer. The teams first square off in a pop challenge involving 13 tiered cakes, and later, the contestants meet host Alison Sweeney at a mud pit where they have to make their way across the pit while balancing on a step - without touching the mud. Several contestants have heart-to-heart talks with their trainers, opening up more about the individual personal struggles they had before coming to the ranch, and later, another player is sent home following a weigh-in with some surprising weight loss numbers.

Host Alison Sweeney tells the remaining 12 contestants that they will all be on one team this week - the blue team - and they will all have immunity if they beat their weight loss from the previous week. But first, there's a pop challenge in which they have to prepare delicious, healthy, low-calorie meals in under 30 minutes. Chefs Curtis Stone and Lorena Garcia will decide who prepares the best dish, with the winner getting a coveted prize. Later the blue team meets at a rock quarry where they'll have to uncover a buried rope attached to signs with trivia questions. If they answer the questions incorrectly, they will be led in the wrong direction, something all the players want to avoid since the winners get a huge advantage at this week's weigh-in. Later, Dr. Huizenga drops by with impressive medical updates, including the news that one contestant has already reached their goal weight. Then it's time for the weigh-in, when players found out if they all get to stay at the ranch another week - or if they'll be sending one contestant home.

This week, one eliminated contestant returns and the remaining players are split into four teams - red, blue, green and black. Each team will be led by one of the four trainers - Bob Harper, Jillian Michaels, Cara Catronuova and Brett Hoebel. While Bob takes his team to spin class and Jillian takes hers to work out at the beach, Brett leads his group on a hike and Cara heads to a boxing ring and has one of her players fight against a longtime boxer. Later, the four teams square off in a difficult challenge involving ropes and weights, and then gameplay at the weigh-in doesn't turn out the way one contestant expects, and another player is sent home. Alison Sweeney hosts the series.

The remaining four teams square off for a wild pop challenge that involves balancing eggs, and the losing team has to leave the ranch for the week and work with a limited budget to purchase what items they'll need most. Trainer Bob Harper takes his contestants to an inner-city school, where they energize the students with a fun workout and talk about the importance of fitness. Then all the contestants go on a huge Easter egg hunt for 5,000 eggs, including a Golden Egg that comes with a very coveted prize. And later, the players are treated to a sneak preview of the upcoming feature film "Hop." Finally, one player reaches a milestone at the weigh-in before another contestant is sent packing.

This week kicks off with a pop challenge in which contestants have to estimate the length of a mile. The winning team gets a night out on the town, Hollywood style, while the other players have to stay behind and clean the ranch. Later, the teams race to light up a "Biggest Loser" board in a challenge that gives a stiff penalty for the losing team - no votes at the elimination. Then one trainer gets shocking news at the weigh-in, and after an emotional elimination, host Alison Sweeney delivers some very exciting news to the contestants.

The nine remaining contestants arrive in New Zealand and embark on the adventure of a lifetime, starting with a visit to Sky Harbor, a popular tourist attraction known for its breathtaking views. Awaiting them are 51 flights of stairs to climb followed by the adrenaline rush of sky-jumping for contestants and trainers. Then it's on to a 5K challenge New Zealand-style, with the winning team getting an unforgettable helicopter ride to gorgeous Waiheke Island. The trainers take contestants to the Auckland Fish Market, where they talk about eating healthy while travelling abroad, and Jillian has a lively lobster encounter. Later, the contestants charter an American Cup racing boat to sail around Auckland Harbor, and one player with a special connection to New Zealand gets a very generous gift.

The New Zealand adventure continues in Queenstown, where the eight remaining contestants learn from host Alison Sweeney that the game is going to singles. Then a special visitor surprises all of the players with a grand and unforgettable entrance! This week's challenge is river surfing, with the winning contestant getting the coveted prize of immunity plus a helicopter ride to spectacular Milford Sound, one of New Zealand's top tourist destinations. Zip-lining, rock climbing and bungee jumping highlight the rest of their memorable Queenstown experience before a weigh-in sends another player home.

It's "Favorites Week" on the ranch, and the remaining seven players participate in a favorite past season challenge - pulling a car for a half mile. Popular NASCAR driver Clint Bowyer is there to cheer them on at the speedway, and Tara Costa, the season seven winner of this challenge, returns to compete alongside the contestants for some amazing prizes. Later, popular season nine contestant Sam Poueu and season five winner Ali Vincent put the contestants through a workout in the gym, and also motivate the players one-on-one. Then it's a weigh-in full of surprises, leading to one more contestant facing eliminaton.

It's the eagerly-anticipated makeover week at the ranch, and fashion guru Tim Gunn guest stars in the Cinderella-themed makeover as a fairy Godfather to the remaining five players. Tim works his fashion magic helping the contestants pick out stylish new outfits to flatter their new slimmer selves, and celebrity hairstylist Ken Paves crafts incredible new looks for each player, leading to amazing and dramatic transformations. Then they are off to enjoy a magical evening, arriving by horse-drawn carriage at a beautiful castle, where they will enjoy heartwarming reunions with loved ones and be treated to a special private concert by the popular band OneRepublic. And the magic continues at this week's challenge, which finds contestants searching through 50 car-shaped sand castles for the keys to two incredible prizes - brand new Mazda 5s. Then it's time for the weigh-in, where one final surprise awaits the contestants.

It's "Finals week," and each contestant will be tested by the trainers to see how much they've really learned at "The Biggest Loser" ranch, with the winner claiming a big cash prize. The players get a chance to add to their overall test scores by competing against each other in four difference exercises while playing "The Biggest Loser Ultimate Workout" on Kinect for Xbox 360. Later, the contestants are put to another test with a stair-building challenge involving weighted sandbags. The winner gets a weigh-in advantage that could help determine who makes it to the final four - and who is sent home.

It's down to the final four contestants, and this week kicks off with a fun cooking competition to see who can make the tastiest turkey burgers for a group of kids. Then it's off to the golf course, where season ten winner Patrick House is waiting to cheer the players on as they "put the weight back on" in one of the toughest challenges of the season. Carrying a heavy golf bag filled with flags weighted for how much they lost each week, each player races from hole to hole, dropping the flags along the way and reminding themselves just how far they've really come. Also, the contestants get to make calls to eliminated players to see how they've been doing at home, and later, they have their final last chance workout at the ranch with the trainers. Then one last weigh-in determines who the two definite finalists will be - and which two contestants fall below the dreaded yellow line, leaving America to vote which one will be the third finalist to compete for the grand prize of $250,000.

In this must-see, exciting live finale, the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. There are four contestants left, but America has voted on the two that fell below the yellow line in last week's episode to choose who will be the third finalist in the game. After America's vote is revealed and the third finalist is announced, the eliminated player will then weigh in with the other eliminated contestants to compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!.

Season 10 kicks off with a new theme of "paying it forward" and 21 contestants vying for a spot at the ranch to get healthy and change their lives forever. With obesity now one of the leading causes of preventable death in the United States, "The Biggest Loser" wanted to broaden their reach this season, pay it forward and motivate communities - not just contestants - to get healthy. So trainers Bob Harper and Jillian Michaels and host Alison Sweeney travel to seven cities in the premiere episode, with each trainer leading community fitness challenges like a one-mile race or a 500 step-up competition. In each of the seven cities - Detroit, Los Angeles, Portland, Atlanta, Phoenix, Oklahoma City and Boston - there will also be three contestant hopefuls competing in the challenges. The two candidates who complete their fitness challenge first win a spot at the ranch, while those who don't make it will get a chance to vie for a spot on the show in a later episode. Guest starring in the premiere will be three popular past season contestants -- season eight winner Danny Cahill, season seven finalist Mike Morelli and season five finalist Mark Kruger.

It's a week of surprises for the contestants, starting with news from host Alison Sweeney that the competition is getting bigger with the addition of two new players who didn't make it to the ranch in the premiere but have been saved by trainers Bob Harper and Jillian Michaels. After all of the contestants get through their first grueling workout, they get eye-opening news from Dr. Huizenga about their health, revelations that are shared with surprise guests. Then the surprise of an early weigh-in - and a twist resulting in more players falling below the yellow line - comes as a shock to all the contestants. Later, they race each other in their first challenge, and then must make a difficult and emotional decision to determine which player will go home first.

One contestant expresses a wish to go home this week, creating drama and tension in the house, while another group of players form a secret alliance. Trainer Bob Harper puts the contestants through a grueling workout, zeroing in on one player he thinks has shown him disrespect, and later, trainer Jillian Michaels tries to bring out the athlete in two contestants she thinks need extra attention. Tennis superstar Anna Kournikova gives all the players tennis lessons for a total body workout before a tennis ball pop challenge. Then the players are surprised by another early weigh-in, and those who fall below the yellow line face a wild elimination challenge involving 175 tons of sand before another contestant is send home.

After hearing from host Alison Sweeney that two people will be going home this week, the contestants face their first temptation in the form of cupcakes, one of which represents a potentially huge prize for the winner that could grow more valuable each week. Later, chef Curtis Stone shows them that desserts can still be part of their lives by teaching them to prepare delicious, low-calorie cupcakes. At an early weigh-in, trainer Jillian Michaels grows frustrated with one contestant who doesn't celebrate her successes, and then trainer Bob Harper invites the players to his house for a vegan meal. Then those who fell below the yellow line face an elimination challenge involving large rolls of carpet, but one player fears elimination when sidelined by an injury. And despite two players being sent home this week, the contestants learn that the competition is about to get bigger.

Five contestants who didn't make it to the ranch in the premiere episode now return, all vying for a spot back in the competition. Whoever has the highest percentage of weight loss wins their way back in, and also wins one of the most important, game-changing decisions of the season when the competition moves to blue team vs. black team this week. In their first challenge as blue team vs. black, they race through food stations in downtown Los Angeles, answering food trivia questions that come with a physical challenge penalty if they choose the wrong answer. And the stakes are high with the winning team getting "The Biggest Loser" meal plan by Ediets for each member, plus the always-coveted reward of letters from home. When one team proves victorious, members of the losing team get a heartwarming surprise. Later, the drama heats up when a rumor spreads of one team possibly throwing the weigh-in, and after a tense weigh-in, the players send another contestant home.

The contestants start their week hearing surprising news from host Alison Sweeney that at this week's weigh-in, only one person's weight will count for the blue team and the black team. It will be up to the opposing team to decide whose weight will count and the two contestants chosen won't be revealed until the weigh in - leaving the blue and black teams busy strategizing on who they should choose. Then the players get a visit from celebrity chefs Curtis Stone and Lorena Garcia. Each chef is paired with a team to help coach them through a timed cooking competition - but neither chef is allowed to actually touch the food, adding to the tension as they race against the clock to finish in time. The winning team gets an advantage at this week's challenge, a dragon boat race pitting blue team vs. black. It's the ultimate test of teamwork and timing as both teams race to win the challenge and a prize that will give them a valuable advantage at weigh-in.

It's the adventure of a lifetime when "The Biggest Loser" contestants are whisked away on military trucks to Camp Pendleton, where they will live and train like Marines for the week. There, they hit the ground running with a fast-paced week of activities led by a select group of Marines. It's non-stop action, from hiking with oversized backpacks to early morning rifle exercises to an intense obstacle course challenge that pits blue team vs. black, with a prize the players want now more than ever. While some struggle with the physical challenges and the adjustment of being away from the ranch, others thrive, and one even shaves his head to be just like the Marines! Later, the players meet up with trainers Bob Harper and Jillian Michaels at the Camp Pendleton gym for a Marine-style last chance workout, and then a weigh-in full of surprising numbers is followed by another player being eliminated.

Host Alison Sweeney greets players with the news that the black and blue teams are being dissolved, and instead, they'll be competing as pairs this week. A high-calorie dinner temptation will determine who gets to choose the pairs, and the winning contestant's choices for teams creates tension in the house and alienates at least one player who feels betrayed. Trainers Bob Harper and Jillian Michaels work the contestants especially hard this week, and confront a few of the players about issues they can't seem to get past. Later, the pairs compete in a crazy challenge stacking sugar cubes, followed by the most explosive weigh-in yet this season, with heated exchanges taking place among the contestants and the trainers. A surprising elimination follows, sending two more players home.

This week, the competition moves to singles, so contestants will compete on their own without partners or teammates from this point forward. The most recent elimination is still a big topic of conversation, with trainer Bob Harper trying to determine why the vote went the way it did and one player still upset over the departure of a close friend. But the players all perk up with news from the trainers that they're getting a special gift from loved ones - heartwarming videos from home that move everyone to tears. When one player doesn't receive a video, the other contestants thoughtfully plan an uplifting surprise to try and make up for it. Then a pool challenge tests everyone's balancing skills, and later, one player reaches a milestone at the weigh-in. Finally, one more contestant is eliminated, and heads home to an emotional reunion with loved ones.

It's one of the most eagerly anticipated events every season "The Biggest Loser" makeover episode! First, the remaining seven players head to the salon of celebrity hairstylist Ken Paves, who crafts great new looks for each of them, and then they're off to a People Magazine photo shoot. Later, the contestants show off their stylish and slimmer selves on a fashion runway celebrating Ford Warriors in Pink and all of their efforts to raise breast cancer awareness and fight the disease. Then it's time for emotional reunions when the made-over players show off their incredible new looks to loved ones flown in to help them celebrate their big day. After the makeovers, it's back to reality at the ranch, and then a challenge that will give the lucky winner the biggest prize yet this season -- a 2011 Ford Edge car. The contestants' stamina and endurance are put to the test, but it's their hearts that really come into play when a surprise turn of events at the challenge leads to one of the most heartwarming moments in "Biggest Loser" history. Finally, one player reaches a milestone at the weigh-in, after which an elimination round sends another contestant home.

The stakes are higher than ever this week when host Alison Sweeney informs the last six contestants that there will be a red line and a yellow line at the weigh-in this week, and those who stay above both will be in the final four. Special guest Nastia Liukin, a five-time Olympic medalist and four-time World Champion gymnast, meets up with the players for a pop challenge that tests their stamina as they compete in five different exercises. Later, trainers Bob Harper and Jillian Michaels talk to contestants to see how they feel about going home, one contestant gets an impressive health update from Dr. Huizenga, and the players all discuss what they'd do with the grand prize money if they won. Then it's time for the traditional end-of-season challenge in which the players all put their original weight back on and drop it incrementally as they lost it on the show. Later, one player tearfully says goodbye after falling below the red line at the weigh-in, and then two more are up for an elimination that really takes the player voted out by surprise. Finally, the two eliminees return home for emotional reunions with family and friends, leaving the season 10 final four at the ranch.

The final four contestants leave the ranch and transition back to life at home, showing off their new slimmer selves to family and friends and facing the temptations and challenges of everyday life. Six weeks later, they return to the ranch to run 26.2 miles, cheered on by loved ones. The winner breaks a "Biggest Loser" marathon record. Then a final weigh-in determines who the two definite finalists will be - and which two contestants fall below the dreaded yellow line, leaving America to vote which one will be the third finalist to compete for the grand prize of $250,000.

In this must-see, exciting live finale, all of the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. There are four contestants left, but America has voted on the two that fell below the yellow line in last week's episode to choose who will be the third finalist in the game. After America's vote is revealed and the third finalist is announced, the eliminated player will then weigh in with the other 18 eliminated contestants to compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!.

It is the heaviest cast ever when season nine kicks off with twenty two contestants - eleven family teams of two - coming to The Biggest Loser ranch hoping to transform their bodies, their health and ultimately, their lives. The new season players include Maria and Michael, an Italian mother-son duo who have always put others first while Michael's weight soared to 526 lbs., identical twins James and John, who together weigh close to half a ton, Tongan cousins Sam and Koli, who hope to inspire others in their culture like Sione and Filipe Fa did in season seven, and Cherita, a competitive mother who has already beat cancer and is ready to take on obesity along with her determined daughter, Vicky. Before coming to the ranch, all of the contestants have to weigh in - but for the first time ever, it will be in their hometowns in front of friends, families and neighbors. Then they arrive on campus and are faced with a strenuous bike challenge their first day - and a shocking surprise from host Alison Sweeney.

This week, Dr. Huizenga delivers the sobering news that this season of contestants is the most unhealthy ever on the show, and more at risk for catastrophic diseases than any previous cast. To illustrate his point, he gives each team a medical task that proves to be a real eye-opener as to what their poor health is really costing them, and how important it is to make healthy changes in their lives. Later, a balance challenge over a pool offers the best prize of all for the winning team, but an unexpected event affects the ending of the competition. Later, trainer Jillian Michaels tries to get one contestant to face one of her biggest fears, and then an elimination after weigh-in sends another contestant packing.

Host Alison Sweeney surprises the contestants with the news that this will be student/teacher week, with the contestants on each team assuming the role of either teacher or student. The teachers get to continue working out with trainers Bob Harper and Jillian Michaels, but then have to teach what they've learned to their teammates or students, who don't get to work out with the trainers. First, a temptation determines who will decide who the student and teacher are on each team, and later, contestants have to unravel their way through a challenge that grants immunity to the lucky winning team. Also, one player threatens to leave after the trainers try to determine what is causing her negative attitude, and an accusation about game play flies during a tense weigh-in, after which another contestant is sent home.

This week starts off with a high-stakes pop challenge in which contestants race for the prize of immunity - and the winning team also gets three envelopes to give to the teams of their choice with instructions that could have a dramatic impact at this week's weigh in. Also, tensions are high between the trainers and one team suspected of game play, and a lifting competition rewards the winning team with a prize that everyone wants.

This week, contestants are surprised by the return of the blue and yellow teams, who were sent home after the first challenge of the season. Now they're back, 30 days later, to weigh in and try to earn a spot back on the ranch. Then a vigorous football challenge tests everyone's stamina, except for one player sidelined with medical issues, and provides immunity for the winner - but a big disadvantage for the losing team. Later, after another elimination round sends a player home, host Alison Sweeney surprises the contestants with exciting news.

It's a star-studded Olympic-themed episode of "The Biggest Loser: Couples" to help kick off the winter games! This week, the contestants head to Colorado to train like Olympic athletes at the U.S. Olympic training facility in Colorado Springs. Host Alison Sweeney tells them the game is going from teams to singles, and multiple medal-winning paralympic athlete Allison Jones warmly welcomes them to the U.S.O.C. campus. Trainers Bob Harper and Jillian Michaels invite two Olympians to help work out the contestants - gold medalist skier Julia Mancuso and Jeret "Speedy" Peterson, the freestyle skier famous for his "hurricane" jump. Then it's off to a pop challenge involving a slide board, where U.S. Olympic speed skater J.R. Celski cheers them on. Later, they engage in a biathlon challenge before moving on to this week's last chance workout -- with pairs figure skater Rockne Brubaker! Then their exciting week comes to an end as two more players are sent packing.

After viewers learn who was eliminated after the Olympic challenge cliffhanger from the previous episode, host Alison Sweeney tells all the contestants they are switching to blue vs. black teams. And the winner of this week's temptation will control the fate of all of the contestants, getting to choose which players go on the blue team with trainer Bob Harper and the black team with trainer Jillian Michaels, as well as which player gets immunity. But after proving victorious at the high-calorie temptation that put their memory to the test, the winner quickly finds their game-changing choices alienating several players - and one of the trainers. Later, the newly-formed teams face off on the roof of a very tall building for a pulling challenge that will bring the lucky winners a special prize from home. Then Dr. Huizenga meets with contestants to give them their updated "Know Your Number" scores revealing how dramatically their health has improved in just seven weeks on othe ranch. Finally, a tense weigh-in pits blue team against black before another player is sent packing.

This week kicks off with a wild challenge that will test the strength of both the blue and the black teams when each team has to pull a truck - and then put together a large puzzle with the crates they had to stop and load along the way. The winning team gets an amazing prize. Then it's work week for the contestants, with each working eight-hour shifts at the food bank while also fitting in workouts in a specific time frame, a real-world task that proves very challenging for some. Later, the blue team squares off against the black team at a tense weigh in before another player is sent home.

This week, the blue team squares off against the black team in a food trivia pop challenge that will send the winning team via limo to a day of pampering and luxury while the losing team has to stay behind and clean up the kitchen and the gym! Then popular chef Curtis Stone stops by to help host Alison Sweeney judge a food cook-off challenge. Each team has 30 minutes to make an appetizer, entrée and dessert using only 12 ingredients, and the team who wins the taste test gets a big advantage at this week's weigh in. Then an emotional elimination round sends another player home.

This week, the contestants return to their hometowns to visit family and friends. But with those happy reunions comes the challenge of continuing to eat right and exercise despite all of the distractions and temptations away from the ranch. After arriving home, the players also get a surprise - a gift crate with a stationary bicycle and a DVD of host Alison Sweeney explaining the at-home temptation and challenge that awaits them. Each contestant will ride the length of a full marathon (26.2 miles) on their new stationary bike - but they are also provided with a temptation in the form of 48 mini-cupcakes. For every cupcake a contestant may choose to eat, they can apply five minutes to the final ride time of any other player during the bike challenge - a twist that could have a dramatic impact on the outcome of the game. Later, the weigh-in back at the ranch reveals how they all did at home before another contestant is eliminated and sent home for good.

The final nine contestants are delighted to learn from host Alison Sweeney that the game is now going to singles and they'll all compete as individuals for the rest of the competition. Then she reveals a big surprise - the eliminated contestants have returned to try and win a spot back in the game. But for the first time in Biggest Loser history, the player chosen won't be determined by weight loss, but rather by popular vote. After that contestant is voted in, the remaining eliminated players get to battle it out for another spot back in the game - going to whoever wins a 1,000 step-ups challenge. Later, a close friendship starts to unravel, and after a tense weigh-in, another contestant is sent home.

The competition heats up when the players learn that whoever loses 2% of their body weight first this week gets immunity. The catch is that only one person gets immunity and they only get one shot to weigh in whenever they think they've reached that goal. Later, the players head to the pool for a swimming challenge involving weights. After each contestant finishes the race, they are allowed to go back and help others finish, which proves very revealing about who the players want to stay in the game -- and who they don't.

This week's pop challenge finds the contestants piling quarters, each worth $10, on to platters, and then trying to balance the platters as long as they can to win the money they're holding. Aftwards, financial expert Suze Orman talks with the contestants about their financial health, along with season 8 winner Danny Cahill, who she predicted would win last season. It's a wake-up call for many of them struggling with their personal finances, especially when Orman shares her prediction for who will win this season. Then a wild challenge in the pouring rain finds contestants racing to find the right keys that will open this season's biggest prize yet for two lucky contestants - brand new cars! Later, trainer Bob Harper takes the players outside for a workout in the mud, which leads to a wild mud-wrestling fight and a lively chase to bring trainer Jillian Michaels into the fray.

This week, contestants learn that the kitchen will be closed for a day and they'll have to eat their meals from a buffet table offering both high and low calorie choices. Whoever eats the most calories will win a coveted prize - the only vote at elimination. Then it's off to a circuit beach workout with pro volleyball player Gabrielle Reece, and later, the players face off in a building block challenge testing their design and climbing skills. Also, Dr. Huizenga stops by to give updated 'Know Your Number' health scores and reveals how many years the contestants have added to their lives since starting the show. And one player gets devastating news before the weigh-in, followed by an elimination that sends another contestant home.

It's an exciting week for the remaining seven contestants as they head to Dallas to inspire Texans to get healthy and join them as they run a 5K at the Cotton Bowl. Then it's off to a rodeo for a wild challenge involving wrangling calves that will grant immunity to the lucky winner at this week's weigh-in. And with only seven contestants left, it becomes clearer than ever who is willing to do whatever it takes to be in the final four. Also, season eight fan favorite Abby Rike makes a special appearance this week and invites Jillian to speak at her old high school. Later, back at the ranch, another elimination leaves one player feeling very much alone.

It's one of the most eagerly anticipated events every season - "The Biggest Loser' makeover episode! First, the remaining six contestants get $1,000 shopping sprees at their favorite stores before heading to the salon to meet celebrity hair stylist Jonathan Antin and begin their makeovers. Then it's time for amazing reveals and emotional surprise reunions, when the made-over players show off their incredible new looks to loved ones flown in to help them celebrate their big day. Later the contestants and their guests are treated to an unforgettable concert from recording artist Ashanti, who shares her inspirational music. This week's challenge finds the players climbing Jacob's Ladder cardio machines while suspended over a pool, with the winner getting a weigh-in related prize. And finally, two contestants fall below the yellow line at weigh-in, leading to a very emotional elimination as another contestant is sent home.

This week, the remaining five contestants are surprised by a visit from Dallas Cowboys quarterback Tony Romo, who gives them an inspiring pep talk before taking the players on a hike. They also get a visit from season seven winner Helen Phillips and season three winner Erik Chopin, who talk to them about the challenges and strategies for keeping the weight off once they leave the ranch. A health update with Dr. Huizenga reveals startling visuals of how their bodies look now --inside and out - compared to when they first arrived at the ranch. Then the contestants face what could be their toughest challenge yet - putting all of their weight back on and racing up and down sixteen hills of sand while dropping their weekly weight loss incrementally as it was lost during the season. Later, the final five see just how far they've really come watching emotional videos of each of their weight-loss journeys at the ranch with trainers Bob Harper and Jillian Michaels. Then the five players weigh in, but this time, a red line will determine this season's final four, so whoever has the lowest percentage of weight loss will automatically go home.

The final four contestants go home to prepare for a marathon, but some of the players have trouble staying on track when surrounded by all of the distractions of home. And one contestant gets a special visit from chef Curtis Stone. Later, they return to the ranch to run the 26.2 miles, cheered on by family members as well as each of their favorite past season contestants - season 5 winner Ali Vincent, Season 2 winner Matt Hoover, and Season 7 contestants Mike Morelli and Sione Fa. The winner finishes in record time, breaking a "Biggest Loser" marathon record. Then it's the very last "last chance workouts" with trainers Bob Harper and Jillian Michaels before a final weigh in determines who the two definite finalists will be - and which two contestants fall below the dreaded yellow line, leaving America to vote which one will be the third finalist to compete for the grand prize of $250,000.

After viewer votes determine the third finalist, the winner of the $250,000 prize is crowned in the Season 9 finale. The eliminated players also return to weigh in for the $100,000 at-home prize, and former contestants share their weight-loss progress since leaving the show.

Underscoring this season's theme of "second chances" is last season's heaviest contestant and fan favorite Daniel Wright, returning for a second chance to finish the weight loss journey he started in season seven, going from 454 to 312 lbs. Also getting a second chance will be the show's new heaviest contestant ever, a female social worker (Shay Sorrells) who spent much of her childhood in foster care and now weighs 476 lbs. Other contestants include a youth pastor (Sean Algaier) hoping to help himself so he can better help others, a college student (Amanda Arlauskas) who missed the prom she had dreamed of attending because she was so unhappy with her weight, and a remarkable teacher (Abby Rike) who lost her family in a tragic accident and wants to restart her life.

Stone is the specialist chef on "The Biggest Loser," teaching the contestants how to make good nutritional choices and prepare healthy and delicious meals. The Australian native is a master chef, bestselling author, TV host and entrepreneur. In fall 2008, Stone launched his line of sleek and eco-friendly kitchen solutions at Williams Sonoma, and he will continue to unveil new products throughout 2009. Stone's fourth book, Relaxed Cooking with Curtis Stone: Recipes to Put You in My Favorite Mood, was released in April 2009. His passion for food can also be seen on the show "Take Home Chef," which is currently in reruns.

This week, the contestants get an inviting offer from host Alison Sweeney to gain an advantage at weigh-in, but the offer comes with a steep price tag - losing trainers Bob Harper and Jillian Michaels for the week. Later, the players are faced with their first temptation, which will give the winner considerable control of the weigh-in. While Jillian gets very frustrated with a contestant who she thinks is far too focused on gameplay, another player finds she has an injury that will dramatically affect her workouts. Then an incline challenge tests the players' stamina before a very tense weigh-in, in which one contestant alienates the others with questionable choices, leading to a heartbreaking elimination.

This week, one contestant is sidelined due to a medical condition and frustrated about not being able to work out to their full capacity. And all of the contestants are in for a big surprise when they learn from host Alison Sweeney that the kitchen is off limits this week and why. A pop challenge about calories brings one winning team an amazing prize, and trainers Bob Harper and Jillian Michaels take the players out to a restaurant to help them learn how to make healthy choices when eating out. Later, a tough challenge tests all the players' endurance before a weigh in, after which another contestant is sent home.

Week five on the ranch kicks off with contestants getting the news that they're all going to be joining either trainer Jillian Michaels' black team or Bob Harper's blue team. But the bigger news from host Alison Sweeney is that whoever wins this week's temptation gets to make the critical decision of which contestant goes on which team. And when one person wins that much power, all of the contestants are worried about being potentially separated from the partner who has been with them since the beginning of their weight-loss journey. Later, a challenge tests the contestants' ability to work together in their newly-formed teams, and one player gives another a very special gift. Then a weigh-in leads to a tough elimination, sending another player home.

This week, the black and blue teams head to the beach to square off in a wild challenge that sends them digging for a buried treasure. The winning team will get a huge prize - tickets home to see their loved ones -- but there's also a surprise twist! One team of contestants goes home and has emotional reunions with loved ones, but is quickly faced with the challenges of continuing to eat healthy and work out back in their everyday lives. Meanwhile, back at the ranch, the other team is determined to make the most of their time alone on campus in the hopes they can lose more weight than their opposing team. Also, contestants lend a hand at a food bank this week, and one contestant has an emotional breakthrough with trainer Jillian Michaels. And the team who made the most weight loss progress is revealed at the weigh-in before another player is sent packing.

It's an intense week on "The Biggest Loser" when the contestants learn from host Alison Sweeney that they will each face off against a player from the opposing team at weigh-in. The winner of the pop challenge gains considerable control by getting to choose who faces off against whom. Then New York Yankee and four-time World Series champ Derek Jeter gives the players a pep talk about the importance of teamwork before they embark on a wild baseball challenge. The challenge winner then gets a delicious and healthy Mediterranean meal prepared by acclaimed chef Curtis Stone. Later, one player breaks a "Biggest Loser" record at weigh-in, and then the contestants say goodbye to one of their own in the most emotional elimination so far of this season.

The players travel to Washington DC and get a tour of the White House. They meet the White House chef for the tour, and they are shown Michelle Obama's garden where she grows vegetables to eat in the White House. The contestants help to pick and prepare vegetables, then eat them at lunch. The weigh-in is held at the steps of the Lincoln Memorial.

Tensions rise when contestants learn from host Alison Sweeney that two players will be eliminated this week ? so only six of the eight remaining players will still be in the game after the weigh-in. With the stakes so high, players are more determined than ever to stay above the yellow line. First, there's a tennis ball pop challenge that rewards the winner with an advantage at weigh-in. Then the contestants have to jump through hoops ? literally ? when they head to the circus for a lively challenge with the coveted prize of immunity for whoever wins. Later, contestants are led by trainer Bob Harper through a wild, trapeze-swinging last chance workout, only to return to the ranch and find trainer Jillian Michaels ready to put them through a second, grueling last chance workout. Then a dramatic weigh-in leads to heartbreaking eliminations as the contestants say goodbye to two more players.

Then it's time for amazing reveals and emotional reunions, when the made-over contestants show off their incredible new looks to loved ones flown in to help them celebrate their big day and hear their emotional speeches. Later, the contestants face a high-flying challenge across a canyon divide, and the winner is rewarded with a two-week trip to "The Biggest Loser" resort at Fitness Ridge in southern Utah. Then a tense elimination follows the weigh-in, sending another contestant home.

This week, the five remaining contestants get a surprise visit from financial guru Suze Orman, who talks to them about the connection between health and wealth and gives them tips on how to be financially fit when they get home. The players take a health quiz about the high costs of poor health, and later, they talk to trainer Bob Harper about leaving the ranch and the challenges they may face back home. Later, Hall of Famer and Super Bowl champion Rod Woodson helps kick off an NFL challenge involving the weight they've each lost all season. Then it's off to the weigh-in, where this week's winner will get a home visit from chef Curtis Stone to show them how to cook healthy meals after they return from the ranch. Then one contestant is sent home, leaving the four "Biggest Loser" finalists.

The final four contestants go home to reunite with family and friends, and learn that when they return to the ranch, they'll face their toughest challenge yet - running a full (26.2 mile) marathon. It's a daunting challenge, but cheering them along the way will be some familiar faces from the previous season -- season seven winner Helen Phillips and finalists Tara Costa and Mike Morelli, plus a surprise visitor to cheer Rudy on. Later, it's the very last "last chance workouts" with trainers Bob Harper and Jillian Michaels before a final weigh in determines who the two definite finalists will be - and which two contestants fall below the dreaded yellow line, leaving America to vote which one will be the third finalist to compete for the grand prize of $250,000.

In the most recent episode that aired on December 1, Danny Cahill and Rudy Pauls weighed in above the yellow line, securing their spots as two of the three finalists. Amanda Arlauskas and Liz Young fell below the yellow line, leaving America to choose between them to determine the third place finalist competing alongside Danny and Rudy for the $250,000 grand prize.

In conjunction with the new season premiere, "The Biggest Loser" is partnering with General Mills and Feeding America to launch the Pound For Pound challenge, an initiative that encourages Americans to lose weight and feed the hungry. For every pound viewers pledge to lose this new year, a pound of groceries will be delivered to a local food bank. The Pound for Pound Challenge gives Americans the opportunity to fight the hunger crisis and help families in their own communities by simply pledging to lose weight and getting healthy.

This week, the contestants are faced with a temptation that will cause each of them to examine the real reason they've come to the ranch. Then it's off to an outdoor challenge where they'll race by sea kayak and then on foot to the top of a mountain, hoping to win immunity as well as a coveted phone call home. Later, one contestant pushes trainer Bob Harper to the limit, causing him to freak out during last chance workouts before a surprising weigh in leads to a heartbreaking elimination.

This week kicks off with a temptation that host Alison Sweeney tells the contestants will allow one player to reunite with their teammate at home and bring their trainer with them. But the reunion doesn't go exactly as planned when fireworks erupt between the two teammates after one player accuses the other of not doing all she can to stay on the ranch. Meanwhile the contestants check in with Dr. Huizenga to see how far they've come - and how many medications they no longer need from the first three weeks of weight loss. Then a wild jump rope-like challenge results in immunity at this week's weigh in for the winner, followed by a surprising elimination that sends another contestant packing.

Warner is a quarterback for the Arizona Cardinals, and will be playing in this year's Super Bowl on February 1. He is a two-time NFL MVP and was also named Super Bowl XXXIV MVP after leading the St. Louis Rams to a win over the Tennessee Titans. Warner and his wife, Brenda, established the First Things First Foundation, which is designed to help those less fortunate with projects such as trips to Disney World for ill children, rewarding single parents for achieving the dream of home ownership, and teaching Special Olympians the football basics. More information on his organization can be found at www.kurtwarner.org.

Now that the contestants' partners are back at the ranch, those who've been working out at home will weigh in and see how they have fared away from the ranch. A visit to Dr. Huizenga will reveal the contestants' new "real age" and how far they've come in the first five weeks. Then all the players compete in this week's "rope challenge," and later, an elimination leads to tension on one team when one player thinks her partner hasn't been pulling her weight.

It's the 100th episode of The Biggest Loser,and this week, a balancing competition will bring the winner a coveted prize - a 24-hour visit from a loved one back home. Then the teams all take part in a tough challenge that tests their endurance, and later, one player will be sent home from the team that falls below the dreaded yellow line.

This week, the contestants hike up a hill to find over 100 keys, but only two teams will find the keys that unlock the Biggest Loser gym. The rest of the teams have to learn to creatively work out all week without the use of the gym. Later, a rowing machine challenge pits team against team, and then a surprising turn of events leads to one contestant heading home.

This week brings a shake-up no one sees coming when all of the contestants are divided into just two teams - blue and black - leaving many players without their original trainer. Drama ensues, especially with one team who struggles to get used to their new trainer. And contestants are put to the test with one of the longest challenges ever, in which each team tries to put as many miles as they can on their bike in a 24-hour period.

In part two of this week's two-part episode, the contestants continue to adjust to their newly formed blue and black teams. They also meet Prevention Magazine editor Liz Vaccariello and take a pop quiz about health and aging. Then it's a grueling last chance workout leading up to weigh-in, after which another player is sent packing.

First the contestants meet up with DiSpirito and learn how many calories are really in some of their favorite fast food dishes. Then the black and blue teams have a lively cook-off, preparing healthier, low-calorie versions of pizza, burgers and a Mexican entrée. The team who prepares the tastiest and lowest calorie dish gets a meal specially prepared by DiSpirito, plus a chance to pick a fortune cookie with an especially valuable fortune inside - an extra vote at elimination.

This week brings a pop challenge that will add an interesting twist to the weigh-in, and later, the contestants head to 24 Hour Fitness for a relay race competition. The winning team gets 24 hours of luxury, including spa treatments, but some contestants have trouble resisting temptation during their 24-hour getaway. Also, one contestant has a big blow up with their trainer, and all of the contestants get some welcome and surprising news from host Alison Sweeney after elimination.

All of the contestants head home for a week, where they are faced with the challenge of continuing to make healthy food choices and getting their workouts done in their home environments. After they arrive home, each player gets a DVD with host Allison Sweeney revealing their "at home challenge" - to run a half marathon - 13.1 miles! A cookie temptation adds an interesting twist to the competition, and the players find out the results of their hard work once they return to the ranch. Later, another contestant is sent packing.

The teams split up and the competition goes to playing as singles, and the weigh-in finds one player breaking a Biggest Loser record. (TV-PG)

PAST SEASON WINNERS ALI VINCENT AND MICHELLE AGUILAR GUEST STAR -- The contestants get a blast from the past this week with visits from season five winner Ali Vincent and season six winner Michelle Aguilar, both filling in as host while Alison Sweeney is on maternity leave. The contestants are also surprised by the arrival of some old friends, whose return promises to shake up the competition. And while one player is sidelined by medical issues, the rest compete in a balance and endurance challenge that finds each contestant standing on a platform, suspended six feet over a pool. One by one, the lines supporting the platform are removed, making it harder to stand, until only the winner is left standing. Later, Bob has last chance workouts at the beach before the weigh in, which is followed by a surprising elimination.

The competition heats up when the eight remaining contestants are faced with a temptation that will give the winner all the power this week. The players come to the gym and find 100 trays before them, under which there are high calorie snacks, cash prizes and the golden ticket - the one and only vote at this week's elimination. They can uncover as many trays as they like, providing they eat whatever they uncover. Then Chef Rocco DiSpirito returns to teach the contestants how to make healthy, lower-calorie versions of the dishes they used to order in restaurants, and later, two familiar faces from last season give the players encouragement and advice. This week's challenge finds the players running up and down the steps of the Pasadena Rose Bowl competing for an incredible vacation prize. And after the weigh-in, the temptation winner casts the sole vote to send another player home.

First, the contestants head to Macy's where they find fashion guru Tim Gunn waiting to help them pick out stylish new outfits to flatter their slimmer selves. Guest hair stylist Tabatha and celebrity stylist Brandon Martinez transform them further with complete salon makeovers. Then it's time for amazing reveals and emotional reunions when the made-over contestants show off their incredible new looks to loved ones flown in to help them celebrate their big day.

The contestants' food and fitness knowledge is put to the test this week when Good Housekeeping Magazine's editor in chief stops by for a trivia challenge that will give the lucky winner an all-expense paid trip to New York. Then contestants face a different kind of test when trainers Bob Harper and Jillian Michaels send them grocery shopping on a budget - and then critique their purchases. Later, a unique challenge tests each player's balancing skill, and one contestant hits a big milestone at the weigh-in before a shocking elimination sends another player home.

This week, the tables are turned when contestants get to train their trainers and are only too happy to put Bob and Jillian through the paces! Later, the remaining five players have to race up and down hills while carrying bags representing their total weight loss so far in a particularly grueling challenge. Then it's time to visit Dr. Huizenga for a progress report and to find out their new "real ages" now that they've lost so much weight. The players also try on their "goal outfits" and are amazed to see how far they've really come. Then after weighing in and eliminating one more contestant, the final four players head home, where they'll stay for 30 days before returning to weigh in at the ranch one last time.

First, the final four contestants - Tara Costa, Mike and Ron Morelli and Helen Phillips head home for 30 days. After heartwarming reunions with family and friends, they try to get back into their routines but find it challenging to make diet and exercise a priority back at home. Adding to the challenge is the news from host Alison Sweeney that when they return to the ranch at the end of 30 days, their final challenge will be their toughest one yet - running a full marathon. Trainers Bob Harper and Jillian Michaels make surprise visits to the finalists to help steer them back on track.

In the most recent episode, which aired May 5, Tara Costa and Helen Phillips weighed in above the yellow line, securing their spots as two of the three finalists. Ron Morelli and his son, Mike, both fell below the yellow line, leaving viewers to choose between father and son to determine the third place finalist competing for the grand prize of $250,000. America's choice will be revealed in the first part of the finale on May 12, and the contestant who didn't get chosen will compete with the other 18 eliminated players for an "at home" prize of $100,000. Viewers voted by phone and online and the voting window is now over.

Mike and Ron, below the yellow line on the latest weigh-in, learn who America voted for to proceed to the final three with Helen and Tara. Before season 7 is completed, season 8 already begins with two hopefuls, Amanda and Erinn, vying for the one remaining spot for next season's competition. The decision on who that person will be is made by popular vote by the American public during the airing of this live episode, voting based on part on how each does in a workout with Bob and Jillian. The results on the "Pound for Pound" Challenge is presented, this program which aims to tie weight-loss programs across the United States to food bank donations, with the amount of weight pledged and lost equaled by the weight of food donated. The nineteen non-finalist contestants weigh-in to see who has the highest percentage of weight loss to earn the $100,000 "at home" prize. The final three weigh-in last, to see who will take home the $250,000 grand prize. By happenstance, the three finalists do have the highest percentage of weight loss this season, the only three contestants to have lost more than half of their original weight.

It's all about families in the new edition of The Biggest Loser, which features four husband-and-wife teams and four parent-adult child teams trying to lose weight through diet and exercise as they compete for a grand prize of $250,000. Trainers Bob Harper and Jillian Michaels fly around the country, surprising their teams with the news they've been chosen for the show. Then it's off to The Biggest Loser ranch in California, where the contestants get a wake-up call from the show's doctor about what ages their bodies really are vs. their chronological ages because of obesity. Then the eight teams compete in their first challenge -- and the lucky winner gets immunity from this week's elimination. Alison Sweeney hosts the hit weight loss series.

The contestants get to bid on the percentage of body weight they think they'll lose this week, and the highest bidding team can win $10,000 -- but only if they reach their weight loss goal. Then it's off to a wild "sprint and slide" challenge, with the winning team earning a phone call home. Later, Chef Rocco DiSpirito drops by to teach the contestants how to shop for and make healthy, tasty and affordable meals before an elimination round sends another team packing.

This week, the contestants take a road trip to one of the most beautiful places in the world - the Grand Canyon! On the way there, they stop by a convenience store for a temptation challenge with host Alison Sweeney that will provide the winning team a much more luxurious trip for their scenic getaway. Once they arrive at the Grand Canyon, they have to figure out how to work out with no gym and no trainers. Later, the family teams compete for an amazing prize in a kayak challenge on the Colorado River before heading back to the ranch, where medical problems threaten to sideline one contestant. Then a surprise shake-up at the weigh in makes for the most difficult and emotional elimination so far.

In part one of this two-part episode, one team gets to go home and surprise their loved ones, while another team cashes in on a prize to spend 24 hours with their trainer for a day they'll never forget! Then the contestants face their toughest challenge yet - a water tower competition that tests their endurance like never before. Later, one group of contestants incurs the wrath of their trainer when it seems they aren't working out as hard as they need to to stay on the ranch.

In part two of this two-part episode, one group of contestants tries to convince their trainer that they are committed to stepping up their workouts. Later, one of the contestants has a heart-to-heart talk with her trainer about relationship issues with their family member. And a surprising weigh-in forces one team to send a family member home when they fall below the yellow line.

This week, the contestants are left in the dark - literally - during a wild baked goods temptation, with the winner gaining considerable power that could completely change the competition. Later, host Alison Sweeney wakes the contestants up to gather them for the challenge, which will last from sun up to sundown - the longest challenge in Biggest Loser history. One contestant struggles with a decision about whether to stay at the ranch or go home, and then an elimination round sends another contestant packing.

This week, trainers Bob and Jillian take their teams through very unusual workouts unlike anything they've done before. Later, Dr. Huizenga gives the contestants a very encouraging six-week progress report of how far they've come and how much healthier they are since coming to the ranch. Then the teams square off in a difficult balance beam challenge, with the winning team getting something very special from home.

This week, contestants put their food knowledge to the test during a calorie quiz that will give the winning team a dramatic advantage in the challenge. Later, emotions run high when one contestant confronts another on the opposing team before the challenge, which leaves the players soaring to new heights. Then one contestant stuns everyone with a record-breaking weigh-in before an elimination round sends another contestant home.

It's a week of surprises for "The Biggest Losers," and the first is the news from host Alison Sweeney that they'll start competing as individuals now instead of as teams. Then comes the surprise return of all the eliminated contestants, and the revelation that only one gets to return to the game - and that decision won't be determined by weight loss. Then the contestants get a surprise visit from last season's "Biggest Loser" - Alison Vincent! Later, two contestants clash in a big way before the challenge, in which contestants have to stay one step ahead of the competition - literally. And after the weigh-in, the players get their last surprise - a twist in how this week's elimination will go down.

This week, contestants travel back in time to the 1980s, dressing the part and doing 80s style workouts and participating in a special 80s-themed challenge. Meanwhile, two players aren't speaking to each other, causing friction in the house and with one team in particular. Then an emotional elimination round sends another contestant home.

It's Thanksgiving week at the "Biggest Loser" ranch, and contestants will be celebrating with turkey, football and very special guests! First, NFL Super Bowl MVPs Jerry Rice and Steve Young stop by to put the contestants through NFL-style drills. Then celebrity chef Rocco DiSpirito helps the contestants make a healthy version of a traditional Thanksgiving dinner. Later, the contestants are really thankful when they receive special videos from home.

First, the remaining five contestants are whisked away to New York City for incredible makeovers that will show how far they've really come in their weight-loss journeys. After getting new hairstyles at a top salon, the contestants are off to Macy's, where "Project Runway" winner Christian Siriano helps them pick out new outfits to show off their skinnier new figures. Then they head to the "Tyra Banks Show," where Tabatha works her magic to help complete their transformations. Finally, the made-over contestants are revealed on the "Tyra Banks Show," unaware that their loved ones are waiting to surprise them once they walk out on the stage!.

It's the last episode before the season finale, and time for the final four contestants to reflect on their weight loss journeys and the amazing progress they've made. They'll try on their former big clothes and watch highlight videos with their trainers showing just how far they've come. Then, in their final challenge of the season, the contestants will have to carry all the weight they have lost as they race around a track, shedding one week's weight loss at each pit stop until they cross the finish line. Later, at the final weigh-in, two players fall below the yellow line, and then make their heartfelt pleas to viewers as America will once again decide which of the two will become the third finalist at the season finale.

The previous season contestant who wins the most votes will be announced at the end of "Momma's Boys" and viewers will see what the winning contestant looks like today. Two at-home viewers, one on the east coast and one on the west coast, will be randomly selected from those who voted to each receive $10,000 and a "Biggest Loser" ultimate prize pack, plus have their name shown on screen live at the end of "Momma's Boys.".

An all-new twist shakes up the fifth season premiere of "The Biggest Loser," heightening the emotion and tension in the competition. For the first time ever in the history of the show, teams of two will compete against each other rather than individuals. Ten teams - including a mother and son, husband-and-wife, best friends, brothers and a divorced couple - have to pick their trainer, weigh in and compete in challenges together. This week, the teams will have to pull a giant hot air balloon across a field, with the winner getting a coveted 2 lb. advantage at the first weigh in.

The nine remaining teams are surprised by the news that Bob and Jillian will be training them together as one team. Then the contestants are tempted by a delicious barbecue buffet, and the challenges get more difficult as they are tasked with riding giant seesaws! In the end, one more team is sent packing.

The remaining eight teams compete in a game of "elimination" where the last team standing wins immunity so they can't be sent home this week. While the challenge causes rifts in the house as the players become more competitive, the trainers are determined to work the teams harder and post more impressive numbers on the scale at this week's weigh-in. Then an elimination round follows, and another team is sent packing.

It's win or go home after a surprise elimination pits one outcast duo against all of the others. At the challenge, contestants compete for a prize they all desperately need after nearly a month away from their loved ones letters from home. Three teams plot to throw the weigh-in, then have a change of heart, but is it too late for them to turn back?.

In this week's episode, one team retaliates after being called lazy by another team, and the willpower of the contestants is put to the test during a soda temptation. Then the game is changed forever - for trainers and contestants - after a dramatic escalator challenge.

This week, the teams compete in a lively cook-off challenge, with celebrity chef Rocco DiSpirito as the judge. The winning team gets a special dinner prepared by Rocco, plus a very desirable "surprise" from home. Also, one team faces a setback when one of their strongest players suffers an injury, and one of the contestants gets a surprise visitor. In the end, another player is sent packing.

Its nearly the halfway point of the season, so the contestants celebrate the occasion with a challenge involving the total of their weight lost to date. Plus, they receive an inspirational visit from their doctor to assess their health advances. There's also a surprise guest trainer Jillian Michaels' mom, a psychotherapist, who helps the contestants begin to understand the issues in their past that have contributed to their weight gain. Then another elimination round leads to a heartbreaking farewell as one more player is sent home.

For the first time in the history of NBC's hit series "The Biggest Loser," the last nine contestants all get a trip home to see their loved ones in the middle of the season. It's a week filled with heartwarming reunions, real world temptations and tearful goodbyes when contestants must return to the ranch.

The competition heats up as only eight players remain. One team is surprised with a special trip to Las Vegas, but will they maintain their diets and workouts in Sin City, or give in to temptation? Then, in a very emotional elimination, one unsuspecting player makes the ultimate sacrifice for their team.

After revisiting the hospital to check in on their progress, the remaining players face off in one of the biggest challenges in Biggest Loser history -- they must fly across a ravine on zip-lines and collect flags. One player gets the chance to give immunity to himself or one of his teammates, and his decision ultimately affects his own fate. And a shocking announcement at the weigh-in changes the way the rest of the game will be played.

It's down to the six final contestants, but not for long. In a shocking twist, all fourteen of the players eliminated so far return to the ranch and surprise the six. At weigh in, the scale reveals how the eliminated contestants have done on their own at home, and the man and woman who have lost the most weight get to the return to the game!.

After working so hard to lose weight for 12 weeks, the remaining seven contestants get treated to the ultimate day of pampering with makeovers for all. First, they're joined by legendary fashion maven Tim Gunn, who helps each of them choose a stylish outfit at Macy's that flatters their new, skinnier selves. Next they're treated to eye-catching new hairstyles so they'll be looking their best at a runway fashion show that will be photographed for the May issue of Prevention Magazine. Then the contestants strut their stuff - with new clothes and new "dos" - down a fashion show runway, unaware that loved ones are waiting to surprise each one in emotional, heartwarming reunions.

Only six players are left, and the remaining women try to hold their own against the men who are still in the game. In a surprising pop quiz, one player wins a mysterious prize. And at this week's challenge, the players get the chance to sabotage one another by giving each other calories.

Since The Biggest Loser is a global phenomenon, the last five players are surprised with a trip to the other side of the globe Australia! Once there, they get a visit from the Biggest Loser: Australia winner, Adro, compete in a race around the city of Sydney, and climb the legendary Sydney Harbor Bridge. In the end, the final four players are determined by an emotional weigh-in and elimination.

Then they head to the final weigh-in, where two of the final four players fall below the yellow line. But instead of them choosing which of the players will be a finalist for the finale, Sweeney tells them about one last game-changing twist - that for the first time ever in "Biggest Loser" history, America will determine who the third finalist will be. Viewers will vote online at www.nbc.com on the two that fall below the yellow line, with voting taking place for 48 hours following the end of the east coast broadcast at 10 p.m. ET on April 8. Who America chooses to be a finalist - and who they choose to eliminate - will be revealed in the first five minutes of the live finale on April 15.

Mark Kruger and Roger Shultz of trainer Bob Harper's "blue team" fell below the yellow line, and in a surprising twist, learned from host Alison Sweeney that viewers - not the other contestants - would determine which of them would be the third place finalist by voting at www.nbc.com. America's vote will be revealed at the beginning of the live finale, and then the eliminated player will weigh in with the other 16 eliminated contestants to compete for the $100,000 "at home" prize.

In the two-hour season premiere episode, the contestants are dropped in the middle of the desert and trainers Bob Harper and Kim Lyons dramatically skydive to the ground below about a mile away from them. New host Alison Sweeney explains that the first two contestants to reach the trainers will become team captains and will have the tough decision of picking five team members each. Sadly, they realize that means six people will be going home before the game has even begun. Once the teams are picked, the rejected contestants are heartbroken that their journey is already over. But in the new season twist, former trainer Jillian Michaels returns and the rejected contestants learn they will comprise a secret black team!.

The countdown to the surprise reveal of the secret black team trained by Jillian Michaels has begun in this action packed two-hour episode! Meanwhile, the blue and red teams continue to work out with their respective trainers, Bob and Kim, and prepare for this week's competition. Immunity is on the line at this week's challenge, which sends the teams racing up the stairs of a ten-story building. As the contestants head into the weigh-in room, they are shocked to see the black team standing in front of them.

The teams are put to the test for the first time with a tempting food competition. Each contestant will need to decide whether it is worth it to participate when they are put in a room full of unhealthy food. They have four minutes to consume or not consume the most calories and the winner will receive a three-pound pass that will be used to their advantage at this week's weigh-in. In the physical challenge, contestants will participate in three different 100-meter heats against the yellow team formed by three kids. Host Alison Sweeney informs them that the winning team will receive a phone call home, making the stakes this week even higher. After the weigh-in one of the teams will have to send someone home.

This week's food temptation puts the trainers to the test instead of the contestants. If Bob, Kim or Jillian give into temptation, they could possibly be giving their team a 15-second advantage that will aid them in the upcoming physical challenge. As much as the trainers want the bonus time, they would not be setting a good example for their teams by choosing the easy way out. In the physical challenge, host Alison Sweeney explains the contestants must race up and down a hill to their team flag in the fastest time. But there's a catch -- the teams will have to try to outbid each other with a faster time, hoping that someone will wager lower and will be unable to succeed. This would result in knocking a team out. The reward for winning will be revealed at the weigh-in and sadly another person will be sent home.

This week Alison surprises the three teams with news of an exotic getaway, but they quickly discover their vacation will be more work than play. The contestants are faced with temptations they never had to face back on campus, and later square off in a wild challenge unlike any they've faced before. Then back on the Biggest Loser campus, contestants who lose the weigh-in try to forge alliances before making the difficult decision of who to send home.

The three teams join host Alison Sweeney at the beach for a special challenge that tests the contestants' perseverance instead of their speed, with the winning team getting something very special from home. Plus, Jillian gives one of her team members her own version of a makeover with dramatic results. Then it's time for the weigh-in, followed by one of the toughest elimination rounds yet to determine which contestant will go home.

The stakes are higher than ever when host Alison Sweeney introduces the contestants to a unique version of poker, with the winner getting a prize that will completely change the competition for all of the players. Then the game is really on when one contestant shocks everyone when their weight is revealed at the weigh-in, and a dramatic elimination round follows.

In the aftermath of last week's surprising game play by one contestant, the other players - and the trainers -- try to move on and bring the focus back to weight loss rather than ...

The red, blue and black teams all go "green" for the week, participating in recycling and learning how to implement new environmentally friendly habits in their lives. They also learn to exercise without the aid of electricity, taking their workouts to a whole new level. This week's challenge is all about recycling, and the winners get something really environmentally friendly Ford Escape hybrids!.

For the first time ever this season, the players start competing as individuals rather than teams. A tantalizing temptation has the contestants overcome by the power of donuts and one player finds a valuable prize, but was it worth risking their diet for? Then a 24-Hour Fitness triathlon challenge allows a contestant to go home for 24 hours and surprise their loved ones but as always theres a twist.

As a reward for their hard work so far, the players are surprised with a day of star treatment and makeovers on the set of NBC's popular daytime drama Days of our Lives. Behind closed doors, family and friends wait to surprise their beloved losers who they haven't seen in over three months. Alison Sweeney is the host, and trainers Bob Harper, Kim Lyons and Jillian Michaels star.

This week brings a special workout challenge that viewers at home have chosen. Then the final seven contestants battle it out with only two weigh-ins left before one player wins the coveted title of The Biggest Loser.

Its back to work for the remaining six contestants this week, as they leave campus to put all theyve learned about staying fit to the test. Can they avoid temptations while working at a pizzeria? At the challenge, the contestants punch their way to new heights for a one-pound weight advantage. Then after a close weigh-in, the players must send another friend packing.

The stakes have never been higher as the five remaining contestants fight for a spot in next week's Biggest Loser finale. In their last challenge, the contestants take a ride down memory lane to see how far they've come in their 14 weeks on campus. Then one more contestant will be sent home and The Biggest Loser finalists will be revealed.

In this must-see, exciting live finale, all of The Biggest Loser contestants from this season return for a special reunion and a chance to weigh in one last time and show America how much they've all lost since beginning their weight-loss journeys. Then it's the moment viewers have been waiting for, when one of the final four will be named this season's Biggest Loser and win the coveted grand prize of $250,000.

The show that inspired the nation to get healthy is back with 50 contestants, one from each state in the country. New surprises await the contestants including the addition of fitness veteran, Kim Lyons as the new red team trainer. The contestants will quickly learn that only 14 of them will stay and train at the ranch while 36 will go home to compete on their own with a chance to make it back to the ranch and win $250,000. In the first challenge, the teams will square off in a wall scaling competition for the power to switch one team member's weight-loss with someone on the opposing team.

In a special two-hour episode, the contestants get a taste of life away from the ranch with a trip to the beach. The teams quickly learn that it isn't all fun in the sun after Bob and Kim put them through a series of grueling workouts in the sand. At the challenge, the teams will fight for the chance to receive care packages from their families by building mountains of sand in order reach a team flag. Meanwhile, one contestant receives devastating news from home that could force them to leave the ranch.

This week the teams must battle the buffets while going on a luxury cruise vacation. Bob and Kim show the teams how to make healthy food choices and work exercise into a vacation. During the challenge contestants will deliver room service orders all over the ship for the chance to win time with their loved ones. Each week the teams find out how much weight they have lost during the weigh-in and the losing team must send one of their own home from the ranch.

Fresh off their disappointing week, the red team finds themselves falling apart mentally under the pressure. Kim gets frustrated with her team after they refuse to follow her lead. During the temptation, the players try their hand at winning a free pass that will save them from being eliminated. The stakes get higher at the escalator challenge when the teams find out they are playing for $10,000. Each week the teams find out how much weight they have lost during the weigh-in and the losing team must send one of their own home from the ranch.

With the teams even, the players are shocked when they discover that the gym is locked for the week. Bob and Kim use the opportunity to show the teams that they can workout anywhere without using the gym. At the challenge, the blue team hopes to break their losing streak by winning "the wave" challenge at the Los Angeles Coliseum. Before they start the challenge both teams watch inspiring messages from home.

After back-to-back losses, one team must step it up in order to keep their team together. During the temptation, the teams must guess the calorie content of various restaurant foods. The losing team will lose their trainer and have to order takeout for 72 hours. For the high flying challenge, teams will have the chance to win a gourmet meal or an intense pool work out at the Bel Age Hotel on the Sunset Strip.

Caroline delivers shocking news to the teams when she announces that the red and blue teams are gone. One player will have the power to decide who will compete together as a duo. The duos must work together in an exhausting fire challenge in order to win a video phone call home. In an emotional weigh-in, the teams are shocked when an entire duo goes home.

Caroline shocks the duos when she tells them that some of the 36 state contestants are back to weigh-in for the chance to rejoin the competition. Two players rejoin the game, but they struggle to keep up with Bob and Kim's training. At the challenge, everyone has a "ton of fun" moving thousands of pounds across a huge warehouse.

As the players are narrowed down, Caroline reveals to everyone that they will now play as individuals. The remaining players will receive a makeover and a photo shoot to showcase their new thin bodies. And during the weekly challenge, one of the player's will have to face their greatest fear.

Kim teaches the contestants how to cook Thanksgiving dinner "Biggest Loser" style without sacrificing flavor. At the challenge, the players run around the Santa Anita Park race track while wearing their original weight when they arrived at the ranch. The player who crosses the finish line first wins a visit with a family member.

Bob, Kim and season two winner Matt Hoover tackle the ever growing problem of childhood obesity when they head to their high schools to teach kids about proper exercise and nutrition. While checking out the school cafeteria, Bob and Kim chat with the school lunch ladies about replacing the unhealthy options. The trainers also find the time to inspire a few really needy kids to make a lifestyle change. The kids will be challenged to go home and change their unhealthy habits while educating their entire families with all they have learned.

It's the final week at the ranch and emotions run high as the contestants prepare to return home. In the final challenge, the players decide to compete as a team in a "Biggest Loser" triathlon. After the elimination, the remaining four contestants say goodbye to their trainers and return to their families to see if they can continue losing weight on their own.

After weeks of training and careful eating, it comes down to choosing "The Biggest Loser" in this special two-hour, live season finale. The final four contestants weigh-in one last time for the chance to win the grand prize of $250,000. Jaw-dropping transformations will be seen as all 50 contestants return to reveal their newly slimmed bodies.

Caroline Rhea returns to welcome fourteen new players to The Biggest Loser and to host them at their stay at the new ranch. After being faced with a room of tempting food, the players discover a twist in the game - this time it's men vs. women! The women, who will always wear Red, will be trained by Jillian Michaels, while the Blue team, the men, will be put to the test by Bob Harper. Later, the new teams compete in the first challenge of the season - a competition that takes place in a jet so that the contestants can experience what it feels like to weigh nothing! At the end of this 90-minute episode, one of the hopefuls will be voted off of their team. Who will survive the battle of the sexes Biggest Loser style? 

As the realities of a sequestered life on the ranch set in for the 13 remaining contestants, they are tempted by an opportunity to receive comfort and a touch of home. Presented with a room full of their favorite food items, the contestants learn the only way to read a letter from their loved ones back home is to eat from the array of high-calorie treats. Just like their new eating style, the two teams' physical challenge requires balance to cross a balance beam suspended over water.

The battle of the sexes continues as the 12 remaining contestants must overcome injuries and trainer disputes. Another food temptation tests their resolve; they have to decide if they want "the gravy train" or the next physical challenge, which requires the teams to travel up and down the aisle of a moving railroad train.

The teams hit the road for the ultimate temptation town: Las Vegas, where the trainers teach skills for a hotel stay ranging from eating right when confronted with a buffet, to finding ways to workout within their hotel rooms. A card game that offers the chance to win up to $5,000 comes with high stakes - losing their trainer for the rest of the week. The team challenge for the opportunity to choose who sits out at the next weigh-in and to win a return trip to Vegas with their families consists of a relay race in the hotel swimming pool.

A team's spirit drops as its number dwindles, and their trainer hopes a pep talk from a surprise visitor from the past can make a change. However, even the effect of the visit on the team can't prevent a storm of personality clashes, which boosts the confidence of the opposing side.

The miserable performance of one team during previous weekly challenges spurs them to not only work harder during work outs, but to work harder on the teammates relationships with each other. Faced with the challenge of an exhausting uphill climb, the red team follows Jillian on one of its most dangerous workouts to date. The week's victories and frustrations culminate in the most emotional weigh-in yet!

Every competitive reality series has a twist somewhere, and this tension-filled episode presents the remaining eight players with a new way to play. Following a shake up in the teams' composition, former adversaries find themselves aligned against common enemies in the beachside challenge. Later, even the weigh-in has a surprise; ultimately leading to the most shocking elimination to date.

The lucky seven remaining contestants receive Beverly Hills-style makeovers before participating in a professional photo shoot. But the great news that develops at the pedicab race is the surprise visit of family members who become precious cargo in the human-powered vehicles. Winning the race not only earns immunity at the weigh- in, but also means that contestant may spend the evening with their respective family. The amazing weight-loss by the players continues.

The six remaining players learn that all teams are dissolved so they can all go head-to-head against each other in competitions. This week's temptation puts each of the trainers atop dunk tanks. And the challenge has contestants using a giant "jump rope machine" with a flimsy "rope" that easily breaks if stepped on. Also, one contestant surprises the group with a new look, and two of them have a showdown.

The guys open up and share their dreams before all five remaining contestants take on a nightmarish endurance challenge. By wrapping their arms and legs around a one-foot diameter tube suspended before them above a swimming pool, they hang on as long as they can. The last one to fall makes a splash as the winner of this event.

During the last episode taped at the ranch, the final four contestants discover how far they have come in terms of weight loss and exercise by doing the same workout from their first day at the ranch. For their challenge, they have enough quarters to equal the weight they have lost since the first episode placed on their backs. Weighted with coins, they must scale the side of the building, and then make a second trip up the side minus the extra weight. The contestant with the most improved time between the climbs wins, and even gets to keep their quarters.

After weeks of training and careful eating, it comes down to choosing "The Biggest Loser" in this special two-hour, live season finale. Only three contestants remain in the contest to see who has the biggest percentage of weight-loss. The winner will be chosen during the live portion of the telecast.

The biggest winner is "The Biggest Loser" in this compelling new weight-loss drama in which two celebrity fitness trainers join with top health experts to help 12 overweight contestants transform their bodies, health and ultimately, their lives. Caroline Rhea ("Sabrina, The Teenage Witch") hosts the unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. Unique physical challenges, surprising alliances and irresistible temptations make the competition even tougher for the contestants, who ultimately have to decide which player gets eliminated each week. In the end, "The Biggest Loser" becomes the biggest winner, walking away with a healthier body - and $250,000.

Eleven contestants are left in this compelling weight-loss drama in which two celebrity fitness trainers join with top health experts to help overweight contestants transform their bodies, health and ultimately, their lives. Caroline Rhea ("Sabrina, The Teenage Witch") hosts the unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. In this episode, the red and blue teams face the ultimate bake-off challenge when the group who sells the most of their own baked goods at Universal City Walk gets to be pampered at a luxurious spa.

Ten contestants are left in this compelling weight-loss drama in which two celebrity fitness trainers join with top health experts to help overweight contestants transform their bodies, health and ultimately, their lives. Caroline Rhea ("Sabrina, The Teenage Witch") hosts the unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. In this episode, the red and blue teams take the stage for a lively "popstar" challenge, where the teams have to write and perform a song about their weight struggles in front of a live audience.

In this episode, the teams must face the challenge of climbing 74 stories in the tallest building west of the Mississippi.

Caroline Rhea ("Sabrina, The Teenage Witch") hosts this unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. During the challenge in this episode the two teams face their greatest temptation, and one more contestant is eliminated after that person's team realizes they are being manipulated.

Caroline Rhea ("Sabrina, The Teenage Witch") hosts this unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. In this episode, the teams put their new stamina to the test and Blue Team Trainer Bob reaches his boiling point after one contestant refuses to workout. Also, an elimination surprise divides one team.

Caroline Rhea ("Sabrina, The Teenage Witch") hosts this unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. In this episode, a race on stationary bikes to clock the most miles by midnight offers new better-fitting clothes as the prize for highest mileage. In addition, the contestants learn of a new twist in the way the game is played.

Caroline Rhea ("Sabrina, The Teenage Witch") hosts this unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. In this episode, everyone "re-gains" the weight they lost after eight weeks of diet and exercise. This happens in the challenge in which they must run a quarter mile while wearing a vest weighted with the total amount of pounds the contestant previously lost. In addition, everyone reaches a personal best, although one contestant threatens to throw in the towel.

This special episode of this unscripted, one-hour series hosted by Caroline Rhea ("Sabrina, The Teenage Witch") gives viewers an often comic look back at the first eight episodes. Highlights include never-before-seen footage of contestant exit interviews; bloopers and temptations. Viewers will learn just who breaks down and cheats when they thought the cameras weren't watching.

Caroline Rhea ("Sabrina, The Teenage Witch") hosts this unscripted, one-hour series in which two competing teams follow comprehensive diet and exercise plans to undergo radical physical makeovers. After nine weeks of strenuous workouts at the hands of Trainers Jillian and Bob, it's payback time as the contestants turn the tables and "train" the trainers. This episode is also the final weigh in at the ranch, preceded by the contestants reflecting on this journey that has changed their lives, and followed by a vote to trim the players' numbers down to three. Tearful goodbyes then accompany the trio as they realize it is time to go back to their regular lives without the support of their teams and trainers.

After weeks of training and careful eating, it comes down to choosing the "biggest loser" in this special 90-minute season finale. The winner will be chosen during a live portion of the telecast.

This special post-finale episode follows up on some of the surprises announced in the season finale the week before. The champion of the entire competition and viewers discover more about the lives of the other contestants and their fighting spirit.