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Series 1 - The Walrus Chief
Animated deep sea adventures with Captain Barnacles and his band of explorers. When Peso's precious medical kit is taken, Barnacles and Kwazii try to get it back.
Source: CBeebies
Most recent episodes of Octonauts
Octonauts
Series 1 - The Kelp Forest Rescue
Animated deep sea adventures with Captain Barnacles and his explorers. Peso's little brother Pinto comes to visit the Octonauts.
26-01-2026
CBeebies
Octonauts
Series 3 - Sea Skaters
Animated deep sea adventures with Captain Barnacles and his explorers. When Kwazii gets lost at sea aboard the tiny octo-ski, he meets a flotilla of sea skaters.
26-01-2026
CBeebies
Octonauts
Series 1 - The Oarfish
Animated deep-sea adventures with Captain Barnacles and his explorers. Dashi snaps a picture of what appears to be a sea serpent.
25-01-2026
CBeebies
Octonauts
Series 1 - The Crafty Cuttlefish
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts are on a mission to recover Captain Barnacles' lost octo-compass.
24-01-2026
CBeebies
Octonauts
Series 1 - The Cookiecutter Shark
Animated deep sea adventures with Captain Barnacles and his explorers. What keeps making strange holes in the Octonauts' equipment? The crew investigate.
24-01-2026
CBeebies
Octonauts
Series 1 - The Mixed Up Whales
Animated deep sea adventures with Captain Barnacles and his explorers. When the Octonauts repair their ship, the resulting noise disturbs a nearby blue whale.
23-01-2026
CBeebies
Octonauts
Series 3 - Duck-billed Platypus
Animated deep-sea adventures with Captain Barnacles and his explorers. While rescuing river creatures after a storm, the Octonauts find a strange egg.
23-01-2026
CBeebies
Octonauts
Series 1 - The Hermit Crabs
Animated deep sea adventures. When the crew can't return to base, Peso and Tweak have to help a hermit crab escape from its shell.
22-01-2026
CBeebies
Octonauts
Series 3 - Barracudas
Animated deep-sea adventures with Captain Barnacles and his explorers. Shellington and the Vegimals are on a mission to replant a mangrove forest.
22-01-2026
CBeebies
Most popular episodes of Octonauts
Octonauts
Series 5: 1. Blue Fin Tuna
After an encounter with a school of migrating tuna, the Octonauts discover that one of the speedy fish, Tina, has been left behind. And she’s injured! Poor Tina has a hook ...
16-12-2025
CBeebies
Octonauts
Series 3 - Yeti Crab
Animated deep sea adventures with Captain Barnacles and his explorers. A yeti crab damages the ship, endangering itself and the Octonauts.
21-01-2026
CBeebies
Octonauts
Series 1 - The Hermit Crabs
Animated deep sea adventures. When the crew can't return to base, Peso and Tweak have to help a hermit crab escape from its shell.
22-01-2026
CBeebies
Octonauts
Octonauts Special: The Amazon Adventure
Animated series. In this special episode, the Octonauts travel deep down the Amazon river in search of a lost city - and Kwazii's long-lost grandfather, Calico Jack!
29-10-2025
CBeebies
Octonauts
Series 1 - The Great Penguin Race
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts cheer Peso on as he goes home to compete in an annual tournament.
29-12-2025
CBeebies
Octonauts
The Over, Under Adventure
Animated deep sea adventure series. The Octonauts' mission to explore Antarctica becomes a desperate rescue as a group of sea stars and urchins are threatened by a brinicle.
15-08-2024
CBeebies
Octonauts
Series 1 - The Narwhal
Animated deep sea adventures with Captain Barnacles and his fellow explorers. While sailing the Arctic, the Octonauts' ship, the Octopod, gets trapped in the ice.
15-01-2026
CBeebies