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Series 1 - The Giant Whirlpool
Animated deep-sea adventures with Captain Barnacles and his explorers. Tweak's pal, a leatherback sea turtle, is caught in a fast-moving ocean current.
Source: CBeebies
Most recent episodes of Octonauts
Octonauts
Series 3 - Urchin Invasion
Animated deep sea adventures. The Octonauts head to the kelp forest to visit Shellington's sister, Pearl, and her newborn son Periwinkle.
02-10-2026
CBeebies
Octonauts
Series 1 - The Jellyfish Bloom
Animated deep-sea adventures with Captain Barnacles and his explorers. Shellington gets trapped in the middle of a massive jellyfish bloom.
02-10-2026
CBeebies
Octonauts
Series 3 - Immortal Jellyfish
Animated deep sea adventures. Shellington and the Octonauts try to track an unusual creature: a jellyfish that can live forever!
01-10-2026
CBeebies
Octonauts
Series 1 - The Comb Tooth Blenny
Animated deep sea adventures with Captain Barnacles and his explorers. When Kwazii and Peso are shipwrecked on an island, they meet a fish who walks on land.
01-10-2026
CBeebies
Octonauts
Series 3 - Sea Sponge
Animated deep-sea adventures. A sea sponge that houses other sea creatures in its pores suffers from a mysterious illness and Peso must figure out the cause.
30-09-2026
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.
30-09-2026
CBeebies
Octonauts
Series 3 - Red Rock Crabs
Animated deep sea adventures. When Shellington and the crew try to gather some skittish crabs who have drifted away from home, they get help from some old friends.
29-09-2026
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.
29-09-2026
CBeebies
Octonauts
Series 3 - Lion's Mane Jellyfish
Animated deep sea adventures. A lion's mane jellyfish gets its long and stingy tentacles tangled in the bubble engine, unintentionally flooding the Octopod.
28-09-2026
CBeebies
Octonauts
Series 1 - The Giant Jelly
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts must rescue Peso when he gets trapped inside a giant comb jelly.
28-09-2026
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 ...
26-09-2026
CBeebies
Octonauts
Series 1 - The Blobfish Brothers
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts must evacuate sea creatures before an underwater volcano erupts.
01-09-2026
CBeebies
Octonauts
Specials: 3. Great Barrier Reef
The Great Barrier Reef, the world's largest structure of living organisms and 1,400 miles long, is home to the most diverse population of undersea life on the planet… and ...
09-04-2026
CBeebies
Octonauts
Series 1 - The Giant Squid
Animated deep sea adventures with Captain Barnacles and his band of explorers. The Octonauts set out to find and photograph the elusive giant squid.
25-08-2026
CBeebies
Octonauts
Series 1 - The Snapping Shrimp
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts encounter a snapping shrimp.
12-09-2026
CBeebies
Octonauts
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 disast ...
08-08-2026
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.
20-09-2026
CBeebies
Octonauts
The Mariana Trench Adventure
Special episode of the animated deep sea adventure series. Tweak has designed a brand-new Deep Sea Station to study the deepest, darkest reaches of the ocean.
10-04-2026
CBeebies
Octonauts
Series 3 - Lion's Mane Jellyfish
Animated deep sea adventures. A lion's mane jellyfish gets its long and stingy tentacles tangled in the bubble engine, unintentionally flooding the Octopod.
28-09-2026
CBeebies