Octonauts Season 3 Episodes
Season 3 Episode Guide
Episode 1 - The TriggerfishWhen he's carried away by a cyclonic waterspout, Kwazii finds himself stranded in the desert like open ocean with a triggerfish who's made her home underneath the damaged Gup B.
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Episode 2 - The Mimic OctopusThe Octonauts recruit a shape shifting mimic octopus to help them recover an important vial of medicinal algae from a moray eel's lair.
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Episode 3 - The LionfishThe Octonauts get more than they bargained for when they use the Octopod to transport a pair of invasive lionfish back to their native habitat.
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Episode 4 - The Leafy Sea DragonWhen two young leafy sea dragons are accidentally separated from their father and brought onboard the Octopod, the Octonauts must find them before they end up in Kwazii's stew!
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Episode 5 - The Cone SnailsOnly Peso can 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 6 - The Artificial ReefWhen an underwater storm destroys a small reef, which a frogfish and other creatures depend on, Tweak and her crewmates must convert the Gup F into an artificial reef before another storm strikes!
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Episode 7 - The Humpback WhalesWhen a sardine swallows the key to a treasure chest, a humpback whale helps Kwazii track it down.
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Episode 8 - The BarracudasShellington and the Vegimals mission to replant a mangrove forest is put in peril by a school of toothy barracudas.
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Episode 9 - The Duck-Billed PlatypusWhile rescuing river creatures after a storm, the Octonauts find a strange egg and come under attack by stinging platypuses.
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Episode 10 - The MudskippersThe Octonauts attempt to keep the peace amongst a trio of mudskippers whose home has been flooded.
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Episode 11 - The Habour SealWhen Peso's patient, a remora fish, mysteriously disappears, the Octonauts enlist a unique undersea detective: a harbor seal.
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Episode 12 - The Lion's Mane JellyfishA 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 13 - The Urchin InvasionThe 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 14 - The SiphonophoreKwazii and Dashi become entangled in a strange deepsea creature...a siphonophore...and when a geyser blasts it toward the surface, the Octonauts must stop its ascent before it bursts.
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Episode 15 - The Water BearsThe Octonauts venture into a dangerous red hot lava tube to rescue a teeny tiny water bear who doesn't seem to mind the heat at all!
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Episode 16 - The PelicansWhen 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 17 - The Red Rock CrabsWhen 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 18 - The Sea SpongeA 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 19 - The Immortal JellyfishShellington 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 20 - The Hammerhead SharksThe Octonauts study a group of baby hammerhead sharks, as they hunt on their own for the first time and poke their noses into trouble.
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