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
Series 2 - Great White Shark
Animated deep sea adventures with Captain Barnacles and his explorers. Peso must perform an emergency fin bandage on a hungry great white shark.
18-09-2025
CBeebies
Series 2 - Coconut Crabs
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.
17-09-2025
CBeebies
Series 1 - The Speedy Sailfish
Animated deep sea adventures with Captain Barnacles and his explorers. Barnacles and Kwazii use some speedy sailfish to round up all the Gups.
14-09-2025
CBeebies
Series 1 - The Remipedes
Animated deep sea adventures with Captain Barnacles and his explorers. When Shellington gets lost in a dark sea cave, he gets assistance from some blind remipedes.
13-09-2025
CBeebies
Series 1 - The Giant Spider Crab
Animated deep sea adventures with Captain Barnacles and his explorers. Kwazii is spooked when he spots what looks like a giant underwater spider.
12-09-2025
CBeebies
Series 1 - The Giant Spider Crab
Animated deep sea adventures with Captain Barnacles and his explorers. Kwazii is spooked when he spots what looks like a giant underwater spider.
12-09-2025
CBeebies
Series 1 - The Electric Torpedo Rays
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts give their ship a jump-start with some electric torpedo rays.
08-09-2025
CBeebies
Series 1 - The Pirate Parrotfish
Animated deep-sea adventures. The Octonauts go on a pirate treasure hunt, and Kwazii meets the perfect sidekick - a parrotfish!
05-09-2025
CBeebies
Series 1 - The Great Algae Escape
Animated deep sea adventures with Captain Barnacles and his explorers. The crew must catch a runaway Octopod after it is hijacked by a group of crustaceans.
07-09-2025
CBeebies