Lab Rats

Season 4 begins with Chase, Adam, Bree and Leo discovering that a confidante has secretly formed an evil rebellion to exact revenge for his father's death by killing Davenport. Meanwhile, Leo informs everyone that he is not "one of them" but brags about living with Adam, Bree and Chase in their high-tech quarters.

Adam, Bree and Chase sneak a group of bionic students off the island but accidentally leave Spin and Bob behind. They then scramble to retrieve them before Davenport finds out.

Everyone becomes convinced a new threat has emerged when a series of suspicious events occur overnight.

Douglas' long-lost dog shows up on the island. Chase becomes severely allergic to it, while Adam instantly bonds with the pooch.

Leo promotes himself as the fourth member of the team and creates more mission alerts than the team can handle.

Adam and Chase each lead their student groups against one another in a series of simulated exercises that evaluate student and mentor performance.

When Leo is injured during a mission, Tasha rushes to the academy to take care of him. She quickly realizes the danger he puts himself in on missions.

Douglas and Chase work together to reanimate an extinct species of sea spider. The spider escapes and puts the entire academy in jeopardy.

Bree and Chase discover that a female bionic student has a commando app like Chase. After she starts terrorizing the academy, they activate Spike to subdue her.

Davenport's top scientist Dr. Ryan arrives at the academy to test his latest advance in space technology. Chase is immediately threatened by his young surfer dude demeanor and their rivalry heats up when Chase is forced to work as Dr. Ryan's assistant.

Douglas reveals that a former colleague is a movie director & wants to make a movie based on Adam, Bree and Chase. However, when she shows up to the academy with her actor Troy West (played by Leo Howard) for research, her evil agenda begins to unfold.

An amnesic S-1 arrives at the Island, scared, lost, and vulnerable. Chase and Douglas discover from her that Krane implanted the bionic students with a deadly virus. Chase, Douglas and Leo desperately try to find a solution before time runs out. Meanwhile, Adam and Bree try to make their last hours comfortable. Bree wants to have a party and Adam wants to set the world record for most balloons in a room.

Douglas develops a new piece of technology replicating Chase's bionic intelligence and gives it to some of the other academy students, including Bob. Meanwhile, Perry takes over the island, and instantly abuses her powers and makes everyone's lives miserable, especially Leo and Bree.

Davenport gives Eddy, the smart home system, a synthetic human body, and he quickly becomes a model employee working alongside Terry. Meanwhile, Chase gets an offer to go to Washington to work for the President.

When Terry Perry brings back a skull from a neighboring island, everyone is convinced that it's cursed when strange things start happening to those who come into contact with it. Meanwhile, Adam tries to introduce Bob to the art of scaring people.

When the president awards Adam, Bree and Chase for their heroics, Leo feels left out and forms his own team. When Leo discovers he and one of his teammates have joint bionic abilities, he pushes her to the limit which causes her to lose her eyesight. Racked with guilt, he moves back to Mission Creek but is forced to regain his courage when his family is put in extreme danger.

When Tasha gets everyone except Perry tickets to the big college football game, Perry creates mayhem. Upon arriving at the game, Perry and Davenport go head-to-head in the ultimate tailgate challenge judged by former NFL athlete Willie McGinest.

Everyone is shocked when Douglas introduces a fourth bionic sibling named Daniel who's been living a normal life with an adopted family.

Donald takes everyone for a visit to "Davenportia," the first human space colony located on a remote planet in another galaxy.

The academy students suddenly vanish after receiving an operating system upgrade. The team initially blames a glitch, but realize the kids are pawns in a much bigger master plan. The Lab Rats put their lives at risk when they face off against the vanished students' captors - a nefarious duo they recognize from their past.

The lab rats are on the run as stowaways on a cargo freight headed to the unknown. Once captured by the ship's crew, they are forced to choose between helping a submarine in danger, which would reveal their whereabouts and put them at risk of being caught, or staying quiet.

The lab rats become stowaways on a cargo freighter headed to parts unknown. They are forced to choose between helping a submarine in danger, which would reveal their location and put them in danger, or keeping quiet.

Davenport tries to raise money for a new lab by attempting a death-defying stunt.

Now that she knows their secret, Principal Perry pesters the team to take her on a bionic mission. When they stage a fake mission, things don't go as planned, and they have to save Mission Creek High from a speeding rocket.

Bree gets a part-time job at a tech store but is overshadowed by Chase. Meanwhile, Adam and Leo build a turbo zip-line in the house and find themselves in competition with Davenport.

Chase and Adam record themselves doing bionic stunts but then have to scramble to find the phone they used before their secret is exposed. Meanwhile, Leo and Bree scheme to help Perry spend her fortune.

Leo's excited about his first high-end technological creation, a pair of attack orbs meant to protect the family, but when they can't differentiate between friend and foe, they create more harm than good. Meanwhile, Chase steals Davenport's Eddy technology to make a "Cheddy" app and win a Tech Town employee contest, but things go awry when the technology glitches.

Leo is determined to record the bizarre events he believes take place during a lunar eclipse. Davenport is skeptical until it appears that an alien life form has taken control of Principal Perry's body.

Leo and Tasha are kidnapped by Krane, which sends Davenport on a rescue mission and sets up a showdown that puts Krane head to head with Adam, Bree and Chase.

When Bree is accepted for a high school semester abroad program and Davenport won't let her go, she destroys her chip forsaking her bionic abilities.

Davenport's attempts at rebuilding Bree's bionic chip fail, forcing Leo to go behind his back and ask Douglas for help.

After Leo sees a shark movie that terrifies him, Adam and Chase scare him by repurposing a Davenport Industries cyborg shark. However, the shark's artificial intelligence goes rogue, and Chase, Adam, Leo and Janelle find themselves trapped in the house.

Adam, Bree and Chase get caught on video using their bionics and the video goes viral, revealing their secret to the world. Government agents swarm the house and place Davenport and the Lab Rats on lock down.

Adam, Bree and Chase get caught on video using their bionics and the video goes viral, revealing their secret to the world. Government agents swarm the house and place Davenport and the Lab Rats on lock down.

Leo can't resist showing off his new bionic arm in front of Janelle, but it quickly goes out of control. Agent Graham promotes the kids as bionic celebrities, but when they realize they missed a mission because of him, they decide it's time to get Davenport back as their leader.

Leo and Davenport attend fan convention and face off in an epic fire staff battle. Meanwhile, Adam, Bree, and Chase attend the convention dressed like their favorite "Alien Gladiators" characters in search of the movie's star. However, things take a turn for the worst when the gang lands in a security holding area with a costumed fan boy.

Douglas unlocks new abilities for Adam and Chase that escalate their battle of one-upmanship and disrupt the balance of power on the team.

When Chase finally gets a girl interested in him, Adam gets jealous and sabotages their date by purposefully causing Chase to turn into Spike.

Bree attempts to play a prank on Adam, but it goes awry right before her big date for the school's winter dance.

As Adam, Bree and Chase become celebrities, fame begins to tear them apart. The friction among the group becomes evident when a reality show follows them on a mission and things go awry. However, they must put aside their differences to stop Krane from his evil plan of taking over the planet.

Davenport lays in critical condition after a battle. In an attempt to save him, Leo risks his life to perform a dangerous bionic process. Meanwhile, after being deactivated from the Triton App, Krane's former bionic soldiers have nowhere to go and follow Adam home.

To his dismay, Leo finds out that he will be a student at the Bionic Academy, not a mentor like Adam, Bree and Chase. Chase engages in a battle against a former nemesis and Adam mentors a younger student.

Davenport leaves Adam, Bree, and Chase in charge of the Bionic Academy while he celebrates his anniversary. Leo invites Janelle to the island, but gets distracted by his nemesis.

When Leo is chosen for a mission over Spin, Spin recruits Bob to join him on an unauthorized mission to prove themselves. Meanwhile, Sebastian tries to help Chase get revenge on Adam, but his intentions may not be true.

Adam, Bree and Chase sneak out to meet Marcus in Davenport's new self-driving sports car. When Leo tries to stop them, his nemesis Marcus traps him inside the car and programs it to take him on a wild, high-speed ride bound for the bottom of the Pacific Ocean.

Leo turns to Bree for help after he mistakenly unleashes a swarm of robotic flies on the school. Adam and Chase turn their class assignment into a destructive competition.

Leo finally goes a mission as he helps Davenport and Eddy attempt to stop an underground gas leak. Adam, Bree and Chase struggle to escape from Principal Perry's detention lockdown.

Bree is exposed to a dangerous toxic chemical sending Adam and Chase on a mission for an antidote. Bree escapes quarantine and when her side effects kick in it's up to Leo to get her back to her capsule.

Chase and Leo enter a local "create-your-own battle bot" competition where they hope to defeat the returning champion. Davenport asks to give some input, but ends up taking over the entire robot build. When Chase and Leo kick him off the team, Davenport becomes determined to win on his own.

Chase outsmarts Adam with a prank that shatters not only his aura of invincibility, but his confidence. In turn, Davenport and Chase set up a confidence building faux rescue scenario that backfires and leaves Chase in real danger. Meanwhile, Bree faces Principal Perry's wrath after she uses a new ability called "Vocal Manipulation" to mimic her.

The Lab Rats confide in Leo their frustrations at having to constantly train and their desire to do normal teenage things. Leo explains the concept of going on strike so they face off against Davenport, who then calls their strike bluff and raises the stakes by recruiting Leo as a Lab Rat "scab" for an upcoming demonstration.

Leo is inadvertently sucked into Davenport's new invention and transported into a parallel universe where Tasha is a brilliant inventor, Davenport is her insecure assistant and Leo finally has what he's always wanted, bionic abilities!.

Leo performs a magic act to earn a spot in the school talent show but loses his slot to Chase who uses his powers to cheat and create "magic" of his own. Leo then sets out to sabotage Chase but inadvertently releases Chase's rampaging alter ego, "Spike," to wreak havoc on the school. Meanwhile a frustrated Bree watches as Adam and Owen attempt to use butter as art.

Leo follows Marcus to his secret lair to gather evidence that proves he's bionic but ends up captured by Marcus. Meanwhile, the Lab Rats scramble to bring Tasha back before Davenport finds out that they accidentally teleport her to parts unknown.

The Lab Rats inadvertently ruin Davenport's million dollar painting and use their powers to cover their mistake. Things go from bad to worse when Davenport attempts to sell the painting and is accused of attempting to sell forged art.

When Adam gets his driver's license, Davenport sets out to buy him a new, safe starter vehicle. But when he's left on his own, Adam closes a deal for a monster truck instead. Tasha runs against Principal Perry for PTA president.

Davenport and his obnoxious new neighbor agree to settle their differences with a stock car race but the Lab Rats are forced to get in on the action when they learn that his neighbor has enlisted NASCAR pro Joey Logano as his ringer.

Marcus and Douglas lure the Lab Rats into a trap and they learn shocking revelations about their secret origins and creator. Leo partners with Eddy for a surprise attack on Douglas' lair resulting in an epic bionic showdown.

Marcus and Douglas lure the Lab Rats into a trap and they learn shocking revelations about their secret origins and creator.

After coming home with a poor report card, Leo uses Davenport's award-winning memory erasing device to wipe Davenport's short term memory but inadvertently erases 25 years, rendering him a teenager.

As the Lab Rats return from a mission, Chase feels like the odd man out after Adam and Bree take all of the credit for the mission's success. Out to prove himself, Chase heads to the Arctic to retrieve rare minerals that Davenport needs for an invention, but finds himself trapped in an avalanche.

In an effort to get out of training duties, Adam enlists Leo's help to create a duplicate Adam using Davenport's experimental cloning device. However, Adam's clone uses the same device to create another duplicate to avoid going to school and the clones he creates repeat the same process resulting in a mob of ever duplicating Adams.

When the school mascot's Dingo costume is stolen by the rival team, Adam seeks revenge by taking their mascot, a llama. When Chase and Adam try to return the llama they discover that the animal has swallowed hundreds of Davenport's mechanical nanobots causing it to shoot acidic bionic spit.

When Leo discovers that his nemesis Trent is rattled by a ghostly Halloween legend, he masterminds a plan for Chase and Adam to use their bionics to stage a haunting at the school. In the process the boys come to fear that the ghostly legend may in fact be real.

When Principal Perry lets Davenport give Mission Creek High a much-needed "tech upgrade," she gets the idea to create a robotic version of herself that will help her patrol the students.

When Chase inadvertently causes Adam to shrink down to two inches, it's all fun and games until Adam ends up on Perry's lunch tray. Meanwhile, Bree gets control of the school for a day.

Bree is tired of being the target of the boys' shenanigans and partners with Tasha to pull the ultimate prank.

The Lab Rats go on a rescue mission to Davenport's secret facility in the frozen tundra to save Dr. Evans.

Leo and Chase use Davenport's technology to get back at Trent on the day of a big test. Meanwhile, Bree gets exposed to a hair growth cream and has disastrous results.

When Principal Perry's life is in danger, the Lab Rats are forced to expose their bionic secret in order to save her. Meanwhile, Davenport is attacked by a mysterious nemesis that leaves his empire in ruins.

Leo discovers three teen super-humans Adam, Bree and Chase, living in a secret underground lab in the high-tech home he shares with his inventor stepdad, Donald Davenport, his mom, Tasha, and Eddy, the "smart house" computer. Leo takes the trio to school, but when they are unable to contain their bionic abilities on campus, Davenport sends them away to a remote secret lab and now Leo must find a way to save his new friends.

The three bionic teens disrupt school with their unique powers and are sent away to a remote lab.

On the Lab Rats first day of school, all goes awry when Chase is confronted by a football player and his "Commando App" is triggered, transforming him into Spike, an unruly drill sergeant. When Spike defies the school principal, she pits the Lab Rats up against the football team to battle it out for the coveted cafeteria table.

When Leo needs help asking a girl to the school dance, Adam and Chase step in to help, but the plan backfires when she falls for the wrong brother. The boys decide to settle their differences on the dance floor and each show off their best moves. Meanwhile, Bree gets to know her crush, but he gets to know her glitches.

The Lab Rats get their first mission to stop Davenport's hi-tech super fast train from speeding out of control. Leo sneaks along, but when the Lab Rats discover he accidently discarded the braking system they were supposed to install, they must improvise a way to stop the train before it crashes into a nearby town. Meanwhile, Tasha is given her big break at the TV news station when her boss asks her to cover the runaway train.

When Davenport's prized invention, a super strength and laser empowered exoskeleton suit, malfunctions, Leo takes it upon himself to fix it. However, it ends up unleashing destructive power on the household, making Leo's grandma even more suspicious of the family.

When Chase refuses to admit that Adam has good ideas, Adam decides to run against him for 'Student of the Semester.' Meanwhile, Leo takes advantage of Bree's bionic super speed making her his personal taxi.

When Adam, Bree and Chase forget to invite Leo to his surprise birthday party, they must make it up to him, so they take Leo into the ultra-cool virtual mission simulator and show him what it's like to have bionics.

Leo teams up with Adam in the school fitness challenge 'Death Spiral Smackdown,' hoping that Adam's bionic powers will be his secret weapon. But the plan backfires when they end up going head-to-head in the finals. Meanwhile, Bree and Chase use their bionic abilities against one another.

After a few failed attempts at impressing Janelle, Leo borrows Davenport's high speed helicopter to take her on a daring date. Meanwhile, Bree decides to move out of the lab and into her own room.

Davenport's time machine brings Leo, from seven years in the future (played by Tyler James Williams), to present day to prevent Adam, Bree and Chase from going on a mission from which they'll never return. Davenport takes the warning seriously and forbids the Lab Rats from going on the mission, but they decide to sacrifice themselves in hopes of saving the world. Meanwhile, future Leo teaches present day Leo how to be cool and shows Davenport his fate.

Adam, Bree and Chase defy warnings from Davenport and swap bionic chips. Chase, with Adam's abilities, attempts to use heat vision for the first time and accidentally fries the elevator's circuitry, leaving Leo trapped inside with Principal Perry. After an unsuccessful attempt to return the chips to their rightful owners, the Lab Rats realize they must work together to stop the elevator from plunging to the basement.

When Tasha and Davenport go on a vacation, it is up to Leo to make sure that nothing happens to his stepdad's prized possessions. Leo and the Lab Rats all promise to behave, but the second they're gone, Leo instantly heads to the lab and plays with a new gadget inadvertently causing Adam, Bree and Chase to glitch. However, their fun must come to an end when a Davenport Industries Solar Drone crashes through the window of the great room.

Adam, Bree and Chase learn about chores and earn allowance for the first time. In hopes of raising more money, the Lab Rats decide to host a yard sale but they accidently sell an antique jewelry box that Davenport was restoring for Tasha. Meanwhile, Leo and Davenport bond over the latest 'Pig Zombie' movies.

Tasha takes the entire family on a nice 'tech free' beach weekend in the RV, but when Davenport discovers a solar flare headed in the Earth's direction, he secretly enlists the help of the Lab Rats. While Davenport distracts Tasha, the trio is forced to wait in the RV-turned portable lab for their rocket launch window. Cooped up inside during their first summer vacation, Leo and the gang sneak out for a quick jaunt on the boardwalk but when they return the RV is gone.

In order to try and impress Janelle, Leo signs up for a one-on-one basketball tournament against the current reigning champ, Trent. Leo plans to use Davenport's antigravity high-top sneakers to help with his slam dunks, but when the shoes get into the wrong hands, he's stuck playing with his own two feet. Meanwhile, Adam and Bree try out for the cheerleading squad and face the wrath of head cheerleader Stephanie.

While helping Davenport in the lab, Leo accidently unleashes an internet virus transforming the "smart house" computer Eddy into an evil version named Teddy. Meanwhile, Bree hosts her first slumber party and invites popular mean girl Stephanie. Adam and Chase decide to prank the girls, but they are interrupted when Teddy takes over and sends everyone into a panic.

When Adam, Bree and Chase are caught on Principal Perry's surveillance camera using bionics, they enlist Leo's help to pull off their most important mission yet. Donning Davenport's invisibility cloak, Leo sneaks into Perry's office to retrieve the evidence, but their plan is foiled when Tasha and Davenport arrive early for parent-teacher conference night.

Adam and Chase form a band with a new kid at school named Marcus, but when Marcus blames Leo for his broken guitar, Leo is convinced that he's up to no good. Meanwhile, Bree tries to bond with Davenport during Career Day.

While Adam, Bree and Chase head off for their latest mission to fix a broken panel in Davenport Industries' Space Station, Leo is tasked with distracting his nosy nemesis Marcus. When Marcus wanders into the lab, Davenport is forced to cover and answer his prying questions instead of guiding the Lab Rats through their biggest mission yet. Meanwhile, Chase accidently discovers a hidden bionic ability, molecular kinesis, leaving Adam and Bree curious about their own secret abilities.