Episode 1
The Siphonophore
11m10.0 / 10
Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore.
Where to watch Octonauts
TV series
Octonauts
2010TV-Y10 seasons7.2 / 10
Follows an underwater exploring crew made up of stylized anthropomorphic animals, a team of eight adventurers who live in an undersea base, the Octopod, from where they go on undersea adventures with the help of a fleet of aquatic vehicles.
Streaming, rental and purchase options
Where to watch in United States
Checked Jul 22, 2026
Octonauts is available to stream on Netflix in United States. You can also rent or buy it from Google Play and Amazon. Use the direct links below to open the provider.
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Synopsis
Follows an underwater exploring crew made up of stylized anthropomorphic animals, a team of eight adventurers who live in an undersea base, the Octopod, from where they go on undersea adventures with the help of a fleet of aquatic vehicles.
Season 3 episodes
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Episode 2
The Water Bears
11m10.0 / 10
The gang ventures into a red-hot lava tube to rescue a tiny water bear that does not seem to mind the heat at all.
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Episode 3
The Cone Snail
11m
Peso sets out to save the day when a cone snail invades the octopod and picks off the crew one by one with its dangerous harpoons.
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Episode 4
The Artificial Reef
11m
When an underwater storm destroys a small reef, Tweak and her crew try to convert the Gup-F into an artificial equivalent.
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Episode 5
The Humpback Whales
11m
When a sardine swallows the key to a treasure chest, a humpback whale helps Kwazii track it down.
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Episode 6
The Pelicans
11m
When a floating garbage patch endangers a flock of pelicans and other sea creatures, the Octonauts and the birds work together to clean it up.
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Episode 7
The Sea Pigs
11m
The Octonauts must stop a huge herd of sea pigs before they march blindly into the Mariana Trench - where there will be no access to food. But things get chaotic when Tunip goes missing!
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Episode 8
The Yeti Crab
11m
As Tweak tests the Gup-X deep down in the Midnight Zone, a yeti crab cuts a vital electrical wire in the ship and cuts off all power, endangering itself and the Octonauts.
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Episode 9
The Barracudas
11m
Shellington and the Vegimals' mission to replant a mangrove forest is put in peril by a school of toothy barracudas.
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Episode 10
The Duck-Billed Platypus
11m
While rescuing river creatures after a storm, the Octonauts find a strange egg and come under attack by stinging platypuses.
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Episode 11
The Sea Skaters
11m
When Kwazii gets lost at sea aboard the tiny octo-ski, he meets a flotilla of even tinier sea skaters - the only insects who live on the ocean.
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Episode 12
The Mudskippers
11m
The Octonauts attempt to keep the peace amongst a trio of mudskippers whose home has been flooded.
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Episode 13
The Harbour Seal
11m
When Peso's patient, a remora fish, mysteriously disappears, the Octonauts enlist a unique undersea detective - a harbour seal.
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Episode 14
The Lion's Mane Jellyfish
11m
A lion's mane jellyfish gets its long and stingy tentacles tangled in the bubble engine, unintentionally flooding the Octopod and causing havoc.
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Episode 15
The Red Rock Crabs
11m
When Shellington and the crew try to gather some skittish crabs who have drifted away from home, they get help from some old friends.
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Episode 16
The Sea Sponge
11m
A sea sponge that houses other sea creatures in its pores suffers from a mysterious illness and Peso must figure out the cause.
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Episode 17
The Immortal Jellyfish
11m
Shellington and the Octonauts try to track an unusual creature: a jellyfish that can transform from old to young repeatedly - and live forever!
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Episode 18
The Urchin Invasion
11m
The Octonauts head to the kelp forest to visit Shellington's sister, Pearl, and her newborn son Periwinkle - only to find the forest endangered by an infestation of kelp-eating urchins!
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Episode 19
The Hammerhead Sharks
11m
The Octonauts meet some hammerheaded sharks, however, they can't sleep too well because Shellington and Professor Inkling have been arguing about who is smarter that they are no longer friends.
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Episode 20
The Loggerhead Sea Turtle
11mfinale
After an undersea tremor separates the Gup-X and its crew, Barnacles seeks guidance from a mysterious sea turtle.
Where to watch OctonautsEpisode information updated Jul 24, 2026
More about Octonauts
Cast
Keith Wickham
Simon Greenall
Jo WyattRob Rackstraw
Ross BreenCaptain Barnacles
Teresa GallagherDashiMichael MurphyVegimals
Paul PantingPesoCredits
- Created by
- Michael C. Murphy, Vicki Wong
- Written by
- Rich Fogel
Production details
- Status
- Returning Series
- Series type
- Scripted
- Episodes
- 274
- Original language
- English
Networks & production
CBeebiesUnited Kingdom
Brown Bag FilmsIreland
Mainframe StudiosCanada
ChorionUnited Kingdom
Silvergate MediaUnited States
Themes
3d animationanimationanthropomorphic animaloceans rescuesubmariner
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