One Zoo Three

The brothers visit Belgium's Pairi Daiza Zoo to meet pandas, walruses, penguins and the golden takin, all animals that have adapted to survive in the coldest climates.

Explore the fantastic features of the zoo's most weirdly wonderful animals. Hufflepuff the hedgehog tenrec enjoys a dust bath, and Jua the serval puts her radar ears to the test.

The brothers learn about animals that like to take things slowly. They discover the top speed of a giant African land snail and see just how slow a sleepy sloth can get.

Looking to help protect the planet Cam, Tyler and Aaron take inspiration from the zoo's animal eco heroes, including pygmy marmosets, Amur tigers and orangutans.

Meet the zoo's powerful animals as Sonika the Asiatic lioness gets a grip in a tug-of-war and Tyler takes on Marion the sulcata tortoise in a contest of strength.

The brothers learn all about different types of cosy animal dens. Bird expert Nadeem helps Cam build a bird box, and Aaron reveals why the Asiatic lion is most endangered.

The One Zoo Three brothers meet the zoo's shyest animals as Cam is challenged to a game of spot the reptile, and Tyler tries to tempt Rambutan the binturong onto his new platform.

Trying to solve the case of the mystery footprints, the brothers look at the animals' feet. Could it be the penguin chicks, the snow leopard cubs, or something far more peculiar?

While the brothers are making sure all the habitats are squeaky clean, they discover how much they can learn from the animals themselves, as they are nature's best clean-up crew.

The brothers hold a party to welcome some a red panda, two cheetah brothers and some sand lizards to the zoo - but will Cam be able to collect the wriggly lizards?

The brothers explore the clever ways the zoo's animals communicate. Aaron discovers there is more to a lion's roar, and how will snow leopard Shen react to Tyler's smelly treat? 

The brothers celebrate Mother's Day. It's a big step for snow leopard cub Shen, jaguar Kiera has a break from daughter Inka, and is Tilly the red panda having a baby? 

It's vet day at the zoo. Kanu the penguin gets treated for his unhappy feet, Ellie the porcupine has an injection of confidence, and Xizi the amur leopard receives some sad news. 

The brothers go to work at an awesome German zoo. Tyler discovers the wonders of the rainforest, Aaron goes ape with orangutans, and Cam makes a splash at an elephant pool party! 

The brothers check up on how green they have been. A tiger gets stuck into an old barrel, a ring-tailed lemur has a special sparkly snack, and the brothers search for tigers in India.

Tyler makes gummy treats for the pygmy marmosets, Cam takes Baikal the white tiger to the dentist, and Aaron attempts to stop the camels chewing their home. 

The brothers are delivering healthy greens to all the animals. Tyler's puzzle gives the lemurs food for thought - and who will win the bug hotel build challenge? 

Find out if supersized anaconda Optimus Prime welcomes his new housemate. Tyler tries to outjump a springy serval cat, and Amur leopard Xizi has a big operation. 

Cam helps Amur leopard Luka look for love, Tyler reunites with Khumbu the snow leopard, and Aaron sees the rare black hornbill chick fly the nest. 

Cam weighs Womba the palm-sized possum, Aaron teaches the camel brothers some manners, and Tyler gets Griffin the caracal to take a giant leap. 

On an extremely hot day at the zooo, the white-cheeked gibbons enjoy a puzzling picnic, Spike the bearded dragon visits the vet, and there is a warm welcome set for Kyra the sun bear. 

The One Zoo Three brothers are on a mission to compose a zoo musical using the sounds of the animals. Lar gibbons Shany and Raff swing into action and audition to be the perfect percussionists, while a health check with Bombura the loud kookaburra sees him in with a shout for lead vocals. Even playful jaguar cub Inka proves she can add a cracking big crunch to the mix! Meanwhile, Aaron reveals some facts about Darwin the hornbill's hidden talents, Tyler takes on a breathtaking challenge with an anaconda, and the brothers recall their conservation travels to Uganda to see how rangers are helping protect the African elephant population.

The One Zoo Three brothers join big-cat keeper Briony at the cat sanctuary, where all the animals are limbering up for a very special day of sport. Rare amur leopard Xizi tackles a specially prepared assault course, while snow leopard Khumbhu is put through his paces as he begins training for a marathon move. Meanwhile, Jua the cerval baffles the brothers with her aerial acrobatics in the high jump, and Yazi the puma sinks her teeth into a game of basketball. Cam puts his foot in it while cleaning out Aquarius the fishing cat's stinky diving pool, and Tyler puts his super-sensitive sniff to the test as he tries to guess Whose Poo? And the boys look back on their African adventure, where they help a conservation project in Kenya track down lions and help protect them in the wild.

Cam, Tyler and Aaron want to hold a superhero-themed party inspired by the secret superpowers of some of the zoo's most incredible animals. Rica the armadillo comes out of her shell to show off her super-sensitive sniff, and Moby the eagle owl performs awesome aerobatics without making a sound. Meanwhile, Bactrian camels Mo and Navas display some serious suction with their super-slurping, and Cletus the dwarf crocodile arrives at the zoo ready to flex his pecs. Aaron reveals the mighty powers of the cockroach, and the brothers take a trip to Uganda to help a conservation project caring for orphaned chimpanzees.

It's a busy day at the One Zoo Three zoo as Cam, Tyler and Aaron get stuck into lots of important odd jobs. Scally the African spotted eagle owl's home gets a new makeover, and the brothers make a bit of a splash refreshing the penguins' pool. The otters are cooling down thanks to a clever recycled shower, and Aaron springs into action at the duck pond to help clean the water fountain. The brothers remember their travels to Uganda, helping conservation projects caring for endangered rhinos, giraffes and lions. And who will the meerkats decide is Disaster Chef when they tuck into Cam and Aaron's homemade pizza and donuts?

Cam, Tyler and Aaron are at the cat sanctuary helping keeper Briony prepare for the arrival of Luka, an extremely rare Amur leopard. Will the sanctuary's resident Amur leopard, Xizi, be equally excited with her new partner? Aaron gives Shen, the recently born snow leopard cub, his first health check and helps Tyler prepare a tall, meaty task for Kedera the jaguar - but will she rise to the challenge? Who will be triumphant as the brothers put Aaron to the test with more wildlife wonders? Tyler is sharpening his sniffing senses with a bird poo challenge, and we discover how to tell the real difference between a snake and a lizard! In Uganda, the brothers help a conservation project return some rescued marsh terrapins back into the wild.  

Cam, Tyler and Aaron discover that it's teamwork that makes the dream work when it comes to getting things done. Aaron calls on the help of the zoo's keepers to see who can catch Cletus the dwarf crocodile moving in a game of musical statues. Green anaconda Optimus Prime's habitat needs a makeover, but with four hidden lizards to remove, it will need an eagle-eyed team to spot them. And the brothers recall helping local conservationists at an orphaned chimps sanctuary on their African adventure.

It's a busy day for Cam, Tyler and Aaron as it's time to give some of the zoo's animals a thorough health check. Cam gets a close-up view of Kassanga the African lion's clever claws, while black jaguar cub Inka needs some extra encouragement before getting stuck into a big pile of leaves. Tyler helps keep Eurasian lynx Petra's coat in perfect condition, and Aaron discovers Baikal the white tiger has a problem with his tooth.  

It's Valentine's Day, and love is in the air at the zoo, with the brothers hoping romance will blossom between some of the animals. Cam is on a mission to find his secret admirer at the zoo, while Aaron serenades lar gibbons Shany and Raff with some special Valentine's vocals. Two-toed sloth Mr Jingles gets his long claws cut to make cuddles with girlfriend Dame a bit safer. Meanwhile, emotions run high as the brothers say a heartfelt goodbye to Khumbu the snow leopard, who is leaving the zoo to look for love.  

Everyone at the zoo is put through their paces on a special training day. Aaron heads off to collect Nina the super-long anaconda, and Tyler tries to outsmart Tierra the caracara. 

The brothers celebrate some of the zoo's legends and hold a special birthday party for their oldest animal, Newt the gibbon. And Cam builds some new ramps for arthritic meerkat Freya. 

The brothers check out their resident dinosaur descendants! Will the black hornbills new love hut work its magic? And will penguin chick Marli brave her first dip? 

 The brothers check out who the alpha animals are at the zoo. What will the lions make of the brothers' homemade zebras? And how will Jet the lanner falcon's new tail feathers fare? 

The brothers celebrate Chinese New Year with the big cats. Can some tasty Chinese lanterns help Luka the Amur leopard break the ice with his with neighbour Xizi? 

The brothers unveil their biggest and best enclosure yet, a huge new habitat for the Amur tiger sisters Aleena and Siberia. The boys test out the tigers new 80,000-gallon swimming pool and get hands-on as they prepare to move the world's biggest cats. Meanwhile, the other animals at the park are treated to a bubble show, Tyler has to clean out the tapir toilet and the boys recall their travels to Kenya to see the world‘s last two remaining northern white rhinos.

It's the zoo's grand reopening and the boys are preparing to open the gates to the public for the first time. The night before, they were rudely awoken, and Moto the lion took the opportunity to investigate what the animals get up to during the dead of night. Cam draws the short straw and has to clean out the camel enclosure, while Billy the ocelot is given a pungent treat to play with and the boys recall the extraordinary story of how the zoo was started. Meanwhile, the brothers catch up on when they met with rangers on the front line training to intercept and arrest wildlife poachers.

Temperatures rise as the zoo is hit by a heatwave. Many of the animals are well adapted to the sun, but those from cooler climates need extra attention. The boys devise a series of ingenious tricks to keep each animal cool, including ice baths, mist showers and giant ice lollies. It's fish flavour for the penguins, lettuce lollies for Marion the tortoise and a huge blood lolly for the big cats. Meanwhile, the camels get their yearly comb-down, Tyler has to muck out the stinky Penguin pool and the boys play with an orphaned elephant in Uganda.

The boys welcome some new arrivals to the zoo. Mimo the Pygmy Marmoset emerges from its nest box for the first time and two penguin chicks hatch. Meanwhile, it's Tilly the red panda's birthday, and to celebrate, the brothers decide to hold a cake-off. It's a tradition at the zoo that when a new animal in born, all the animals get presents. Finally, we catch up with the boys in Rwanda as they meet wildlife heroes fighting to save the planet's largest primates - the mountain gorilla.

It's health check day and the boys give each of the animals a thorough MOT. Tamara the tapir gets a pedicure, Marion the tortoise gets a shell rub and the keepers discover a worrying lump on Luna the reindeer's leg. It's Aaron's turn to clean out the giant anaconda enclosure, and the boys venture to Uganda to ride with the country's first animal ambulance.