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Series 5: 4. Ghost Ship
The Octonauts follow a trail of deep-sea debris to its source: a derelict ship floating unmanned on the surface. But the ship seems to be haunted by ghostly voices, which a quick dip below the water line reveals to be hundreds of barnacles stuck to the ship. As the ship drifts into waters too cold for the barnacles, the Octonauts must find a way to tow it to warmer waters before it sinks or falls apart.
Source: CBeebies
Most recent episodes of Octonauts
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CBeebies
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Series 1 - The Slime Eels
Animated deep sea adventures with Captain Barnacles and his explorers. Kwazii covets the treasure in a sunken pirate ship, but it is protected by slime eels.
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Animated deep sea adventures with Captain Barnacles and his explorers. Kwazii finds a mysterious, unbreakable coconut, so the Octonauts seek out help to open it.
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CBeebies
Octonauts
Series 1 - The Arctic Orcas
Animated deep sea adventures with Captain Barnacles and his explorers. When Captain Barnacles and Peso get lost in the Arctic sea, a pod of orcas help find them.
14-02-2026
CBeebies
Octonauts
Series 2 - Long Armed Squid
Animated deep sea adventures with Captain Barnacles and his explorers. Peso and Kwazii venture down to the midnight zone to help a hurt creature.
13-02-2026
CBeebies
Octonauts
Series 2 - Sperm Whale
Animated deep sea adventures with Captain Barnacles and his explorers. A timid sperm whale must conquer his fears to help the Octonauts release Peso from a giant clam.
12-02-2026
CBeebies
Octonauts
Series 2 - Damselfish
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts help a group of algae-eating fish stand up to some aggressive damselfish.
11-02-2026
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 2 - Porcupine Puffer
Animated deep sea adventures with Captain Barnacles and his explorers. Barnacles, Kwazii and Peso venture inside a whale shark to retrieve a porcupine puffer fish.
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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.
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CBeebies
Octonauts
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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
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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.
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CBeebies
Octonauts
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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