It’s literally a packed show as the OZT HQ is crammed full of some of the fastest-swimming marine life and deepest divers surrounding Britain’s shores.\n\nTyler takes the plunge in Plymouth to reveal how a special marine plant is being brought back from the edge of extinction to help fight climate change. Plucking up courage, he then dives deep to swim with sharks and is amazed by what he discovers about this incredible but sometimes misunderstood species.\n\nJust off Britain’s north east coast, Cam also slips into his wetsuit to go snorkelling with seal whisperer Ben. Getting up close with some inquisitive seals, he learns of the threats they face from plastic pollution.\n\nIt’s all eyes on the Scottish skies as the OZT brothers go on a mission to the Isle of Mull to look for the ultimate soaring sea bird, the white-tailed eagle - but who will spot one first, and can Cam get the perfect picture?\n\nBack at OZT HQ, Aaron’s animal knowledge gets put to the test with some quickfire questions from the OZT crew, and Cam reaches for the sky with a drone to reveal how the incredible killer whale shots were filmed for Sir David Attenborough’s Wild Isles.
Source: CBBC
Series 5: 10. Welcome Party
The brothers hold a party to welcome a red panda, two cheetah brothers and some sand lizards to the zoo - but will Cam be able to collect the wriggly lizards?
31-08-2025
CBBC
Series 5: 9. Squeaky Clean
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-u ...
24-08-2025
CBBC
Series 5: 8. Big Steps
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 pe ...
17-08-2025
CBBC
Series 5: 7. Shy Guys
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 p ...
10-08-2025
CBBC
Series 5: 6. Perfect Dens
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.
03-08-2025
CBBC
Series 5: 5. Power Players
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.
27-07-2025
CBBC
Series 5: 4. Eco-heroes
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.
20-07-2025
CBBC
Series 5: 3. Go Slow
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.
13-07-2025
CBBC
Series 5: 2. Weirdly Wonderful
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 th ...
06-07-2025
CBBC
Series 5: 1. Cool Creatures
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.
29-06-2025
CBBC
Series 5: 10. Welcome Party
The brothers hold a party to welcome a red panda, two cheetah brothers and some sand lizards to the zoo - but will Cam be able to collect the wriggly lizards?
31-08-2025
CBBC
Series 1: 3. The Heatwave
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.\n\nThe boys devise a ser ...
11-06-2025
CBBC
Series 5: 1. Cool Creatures
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.
29-06-2025
CBBC
Series 5: 2. Weirdly Wonderful
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 th ...
06-07-2025
CBBC
Series 2: 11. Dinosaur Day
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?
24-02-2025
CBBC
Series 2: 1. The Zoosical
The One Zoo Three brothers are on a mission to compose a zoo musical using the sounds of the animals.\n\nLar gibbons Shany and Raff swing into action and audition to be the perf ...
03-02-2025
CBBC
Series 2: 18. Vet Visit
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 sa ...
05-03-2025
CBBC
Series 5: 4. Eco-heroes
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.
20-07-2025
CBBC
Specials: Indian Celebrations
There's a festival vibe at the zoo with the arrival of two new Asiatic lions. Meanwhile, cute red panda cub Tashi gets a check-up.
25-03-2025
CBBC
Series 4: 6. Strong Swimmers
The brothers celebrate some of the zoo’s strongest swimmers. Can Cam tempt the jaguars into their new pool? And who will win the tapir food raft challenge?
01-04-2025
CBBC