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The Best Episodes of Octonauts

Every episode of Octonauts ranked from best to worst. Let's dive into the Best Episodes of Octonauts!

Binge this in 23h 42m•Peaking at 8.9/10

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

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Episode Rankings

  1. #1 Fan Favorite
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    Octonauts Season 3 Episode 2 - The Water Bears
    8.9/10(15 votes)

    #1 - The Water Bears

    S3:E2

    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.

    Director:Unknown
    Writer:Unknown

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  2. Octonauts Season 2 Episode 20 - The Saltwater Crocodile
    8.7/10(15 votes)

    #2 - The Saltwater Crocodile

    S2:E20

    When a gigantic saltwater crocodile wanders into freezing waters, the Octonauts must figure out how to get the predator back to his warm water home - without anyone getting hurt.

    Director:Unknown
    Writer:Unknown

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  3. Octonauts Season 3 Episode 1 - The Siphonophore
    8.5/10(11 votes)

    #3 - The Siphonophore

    S3:E1

    Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore.

    Director:Unknown
    Writer:Unknown

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  4. Octonauts Season 3 Episode 18 - The Urchin Invasion
    8.4/10(10 votes)

    #4 - The Urchin Invasion

    S3:E18

    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!

    Director:Unknown
    Writer:Unknown

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  5. Octonauts Season 2 Episode 16 - The Mimic Octopus
    8.3/10(14 votes)

    #5 - The Mimic Octopus

    S2:E16

    The Octonauts recruit a shape-shifting mimic octopus to help them recover an important vial of medicinal algae from a moray eel's lair.

    Director:Unknown
    Writer:Unknown

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  6. Octonauts Season 3 Episode 17 - The Immortal Jellyfish
    8.3/10(11 votes)

    #6 - The Immortal Jellyfish

    S3:E17

    Shellington and the Octonauts try to track an unusual creature: a jellyfish that can transform from old to young repeatedly - and live forever!

    Director:Unknown
    Writer:Unknown

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    The 20 WORST Episodes of Octonauts

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  7. Octonauts Season 2 Episode 1 - The Colossal Squid
    8.2/10(16 votes)

    #7 - The Colossal Squid

    S2:E1

    The Octopod is attacked by a colossal squid, who drags the ship down an abyssal trench, forcing Barnacles and Kwazii to make a perilous swim outside to confront the gigantic beast.

    Director:Unknown
    Writer:Rich Fogel

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  8. Octonauts Season 2 Episode 21 - The Humphead Parrotfish
    8.2/10(15 votes)

    #8 - The Humphead Parrotfish

    S2:E21

    The Octonauts use magnets to try to stop a meteor that's heading toward the Octopod and get an assist from a rock-chomping humphead parrotfish and her friends.

    Director:Unknown
    Writer:Unknown

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  9. Octonauts Season 3 Episode 11 - The Sea Skaters
    8.2/10(10 votes)

    #9 - The Sea Skaters

    S3:E11

    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.

    Director:Unknown
    Writer:Unknown

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  10. Octonauts Season 2 Episode 17 - The Lionfish
    8.1/10(13 votes)

    #10 - The Lionfish

    S2:E17

    The Octonauts get more than they bargained for when they use the Octopod to transport a pair of invasive lionfish back to their native habitat.

    Director:Unknown
    Writer:Unknown

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  11. Octonauts Season 3 Episode 8 - The Yeti Crab
    8.1/10(10 votes)

    #11 - The Yeti Crab

    S3:E8

    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.

    Director:Unknown
    Writer:Unknown

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  12. Octonauts Season 3 Episode 9 - The Barracudas
    8.1/10(9 votes)

    #12 - The Barracudas

    S3:E9

    Shellington and the Vegimals' mission to replant a mangrove forest is put in peril by a school of toothy barracudas.

    Director:Unknown
    Writer:Unknown

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  13. Octonauts Season 2 Episode 2 - The Adelie Penguins
    8.0/10(17 votes)

    #13 - The Adelie Penguins

    S2:E2

    While Kwazii and Peso have their hands full babysitting a bunch of Adelie penguin chicks, Captain Barnacles must rescue the chicks' parents from a perilous sea storm!

    Director:Unknown
    Writer:Rich Fogel

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  14. Octonauts Season 2 Episode 22 - The Gulper Eels
    8.0/10(12 votes)

    #14 - The Gulper Eels

    S2:E22

    When hungry gulper eels as well as undersea tremors threaten Inkling and Kwazii, Dashi uses the new, multi-purpose Octo Max Suit to rescue them.

    Director:Unknown
    Writer:Unknown

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  15. Octonauts Season 3 Episode 6 - The Pelicans
    8.0/10(10 votes)

    #15 - The Pelicans

    S3:E6

    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.

    Director:Unknown
    Writer:Unknown

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  16. Octonauts Season 3 Episode 12 - The Mudskippers
    8.0/10(10 votes)

    #16 - The Mudskippers

    S3:E12

    The Octonauts attempt to keep the peace amongst a trio of mudskippers whose home has been flooded.

    Director:Unknown
    Writer:Unknown

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  17. Octonauts Season 2 Episode 15 - The Triggerfish
    7.9/10(14 votes)

    #17 - The Triggerfish

    S2:E15

    The Octonauts' floating temperature sensors alert them to a risk of waterspouts due to a rise in sea surface temperature so they decide to retrieve the devices for safe-keeping. But Kwazii gets into an argument with a possessive triggerfish which has adopted one of the devices as its home, and they both get carried away by a waterspout. Kwazii ends up having to defend the fish from a seabird and a swordfish that want to eat it. Luckily the characteristic grunting sounds that triggerfish make when distressed enables the other Octonauts to locate them.

    Director:Unknown
    Writer:Rich Fogel

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  18. Octonauts Season 2 Episode 19 - The Manatees
    7.9/10(15 votes)

    #18 - The Manatees

    S2:E19

    Running out of air, Barnacles struggles to free his paw from the mouth of a giant clam, while simultaneously directing his crew in a delicate manatee rescue operation.

    Director:Unknown
    Writer:Unknown

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  19. Octonauts Season 3 Episode 3 - The Cone Snail
    7.9/10(11 votes)

    #19 - The Cone Snail

    S3:E3

    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.

    Director:Unknown
    Writer:Unknown

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  20. Octonauts Season 3 Episode 16 - The Sea Sponge
    7.9/10(11 votes)

    #20 - The Sea Sponge

    S3:E16

    A sea sponge that houses other sea creatures in its pores suffers from a mysterious illness and Peso must figure out the cause.

    Director:Unknown
    Writer:Unknown

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  21. Octonauts Season 3 Episode 19 - The Hammerhead Sharks
    7.9/10(11 votes)

    #21 - The Hammerhead Sharks

    S3:E19

    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.

    Director:Unknown
    Writer:Unknown

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  22. Octonauts Season 3 Episode 20 - The Loggerhead Sea Turtle
    7.9/10(10 votes)

    #22 - The Loggerhead Sea Turtle

    S3:E20

    After an undersea tremor separates the Gup-X and its crew, Barnacles seeks guidance from a mysterious sea turtle.

    Director:Unknown
    Writer:Unknown

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  23. Octonauts Season 2 Episode 10 - The Scared Sperm Whale
    7.8/10(15 votes)

    #23 - The Scared Sperm Whale

    S2:E10

    A timid sperm whale must help the Octonauts release Peso from a giant clam.

    Director:Unknown
    Writer:Rich Fogel

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  24. Octonauts Season 2 Episode 18 - The Leafy Sea Dragons
    7.8/10(14 votes)

    #24 - The Leafy Sea Dragons

    S2:E18

    When 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!

    Director:Unknown
    Writer:Unknown

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  25. Octonauts Season 3 Episode 4 - The Artificial Reef
    7.8/10(11 votes)

    #25 - The Artificial Reef

    S3:E4

    When an underwater storm destroys a small reef, Tweak and her crew try to convert the Gup-F into an artificial equivalent.

    Director:Unknown
    Writer:Unknown

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Best Episodes Summary

"The Water Bears" is the best rated episode of "Octonauts". It scored 8.9/10 based on 15 votes. Directed by Unknown and written by Unknown, it aired on 9/5/2013. This episode scored 0.2 points higher than the second highest rated, "The Saltwater Crocodile".