Catch up TV
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.
Source: CBeebies
Most recent episodes of Octonauts
Octonauts
Series 1 - The Walrus Chief
Animated deep sea adventures with Captain Barnacles and his band of explorers. When Peso's precious medical kit is taken, Barnacles and Kwazii try to get it back.
03-04-2025
CBeebies
Octonauts
Series 1 - The Crab And Urchin
Animated deep sea adventures with Captain Barnacles and his band of explorers. Barnacles and Kwazii investigate a disruption involving a crab on a nearby reef.
02-04-2025
CBeebies
Octonauts
Series 1 - The Undersea Storm
Animated deep sea adventures with Captain Barnacles and his band of explorers. Kwazii's Gup-B breaks down in a storm, but a chain of reef lobsters lends a hand.
01-04-2025
CBeebies
Octonauts
Series 1 - The Whale Shark
Animated deep sea adventures with Captain Barnacles and his band of explorers. Dashi is swallowed by a whale shark so the Octonauts venture inside to rescue her.
31-03-2025
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.
30-03-2025
CBeebies
Octonauts
Series 2 - Leafy Sea Dragons
Animated deep-sea adventures with Captain Barnacles and his explorers. Two young leafy sea dragons are accidentally brought onboard the Octopod.
30-03-2025
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.
29-03-2025
CBeebies
Octonauts
Series 2 - Lionfish
Animated deep sea adventures with Captain Barnacles and his explorers. The Octonauts get more than they bargained for with a pair of invasive lionfish.
29-03-2025
CBeebies
Octonauts
Series 5: 5. Feeding Frenzy
While exploring a reef, Shellington and Dashi accidentally trigger a feeding frenzy with multiple sharks biting at anything that moves. As Barnacles and Tweak work frantically t ...
28-03-2025
CBeebies
Octonauts
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 quic ...
27-03-2025
CBeebies
Most popular episodes of Octonauts
Octonauts
The Over, Under Adventure
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
Octonauts
Series 1 - The Hungry Pilot Fish
Animated deep-sea adventures with Captain Barnacles and his explorers. A lost pilot fish who eats ocean gunk cleans up the Octonauts' dirty gups.
09-11-2024
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.
09-03-2025
CBeebies
Octonauts
Series 1 - The Midnight Zone
Animated deep-sea adventures with Captain Barnacles and his explorers. The Octonauts discover a strange rock that happens to be home to a new species of worm.
11-10-2024
CBeebies
Octonauts
Series 1 - The Walrus Chief
Animated deep sea adventures with Captain Barnacles and his band of explorers. When Peso's precious medical kit is taken, Barnacles and Kwazii try to get it back.
03-04-2025
CBeebies
Octonauts
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.
19-10-2024
CBeebies