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Series 1 - The Sardine School
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts must work together as a team to help a lost sardine find her school.
Source: CBeebies
Most recent episodes of Octonauts
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.
23-03-2026
CBeebies
Octonauts
Series 2 - Manta Rays
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts help a young manta ray find the secret manta ray feeding grounds.
22-03-2026
CBeebies
Octonauts
Series 2 - Fiddler Crabs
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts help clean up a beach after a storm.
21-03-2026
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.
21-03-2026
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.
20-03-2026
CBeebies
Octonauts
Series 3 - Harbour Seal
Animated deep-sea adventures with Captain Barnacles and his explorers. When Peso's patient mysteriously disappears, the Octonauts enlist a unique undersea detective.
19-03-2026
CBeebies
Octonauts
Series 3 - Mudskippers
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts attempt to keep the peace amongst a trio of mudskippers.
18-03-2026
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.
17-03-2026
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.
16-03-2026
CBeebies
Most popular episodes of Octonauts
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.
02-03-2026
CBeebies
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 - 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
Octonauts
Series 1 - The Scary Spookfish
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts meet a strange-looking creature with a see-through head: a spookfish.
08-02-2026
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.
03-03-2026
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 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