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Specials: 2. Ring of Fire
The Octonauts embark on the biggest adventure ever! The crew is caught off guard by a volcanic eruption in the Pacific, but this single emergency soon turns into a global disaster when eruptions are triggered all across the Ring of Fire – a chain of hundreds of land and undersea volcanoes encircling the Pacific Ocean. As the Octonauts scramble to rise to the challenge of their multipronged rescue mission, Tweak has one last trick up her sleeve: the Gup-Z – a giant, untested new mecha Gup that will take the whole crew to operate.
Source: CBeebies
Most recent episodes of Octonauts
Octonauts
Series 1 - The Beluga Whales
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts discover a pod of beluga whales stranded at a breathing hole.
11-05-2026
CBeebies
Octonauts
Series 3 - Humpback Whales
Animated deep-sea adventures with Captain Barnacles and his explorers. When a sardine swallows an important key, a humpback whale helps Kwazii track it down.
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CBeebies
Octonauts
Series 3 - Artificial Reef
Animated deep sea adventures with Captain Barnacles and his explorers. Tweak and her crewmates must convert the Gup-F into an artificial reef.
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CBeebies
Octonauts
Series 1 - The Decorator Crab
Animated deep sea adventures with Captain Barnacles and his explorers. When important objects go missing from their ship, the Octonauts watch out for the thief.
08-05-2026
CBeebies
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.
07-05-2026
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.
06-05-2026
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.
05-05-2026
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 ...
12-03-2026
CBeebies
Octonauts
Series 2 - Gulper Eels
Animated deep sea adventures with Captain Barnacles and his explorers. Hungry gulper eels as well as undersea tremors threaten Inkling and Kwazii.
25-04-2026
CBeebies
Octonauts
Series 1 - The Snapping Shrimp
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CBeebies
Octonauts
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!
14-03-2026
CBeebies
Octonauts
Series 3 - Siphonophore
Animated deep sea adventures with Captain Barnacles and his explorers. Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore.
26-04-2026
CBeebies
Octonauts
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.
15-03-2026
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.
01-03-2026
CBeebies