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The Best Episodes of Octonauts Season 5

Every episode of Octonauts Season 5 ranked from best to worst. Discover the Best Episodes of Octonauts Season 5!

Binge this in 4h 13m•Peaking at 8.7/10

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
    Octonauts Season 5 Episode 2 - Bluefin Tuna
    8.7/10(3 votes)

    S5:E2

    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 stuck in her mouth and is too weak to swim. After Peso tends to her wound, the Octonauts agree to help get her to the tuna spawning grounds. But they’ll have to be quick: egg-laying season doesn’t last long. Luckily, Tweak’s latest gup, the Gup-R, is the fastest she’s ever built! The Octonauts use it to tow Tina, but when the Gup-R’s battery dies, how will they catch up to the rest of her school?

    Director:Unknown
    Writer:Unknown

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  2. Octonauts Season 5 Episode 1 - Blue Whale Rescue
    7.0/10(2 votes)

    S5:E1

    When Kwazii discovers a blue whale with an injured tail, the Octonauts attempt to use a giant net and Octofloats to keep it from sinking. Meanwhile, Peso and Tweak collaborate on a special brace for its tail, and Kwazii, Dashi and Shellington try to find it enough food. But when the supporting net breaks, the Octonauts have to launch an emergency free-fall rescue!

    Director:Unknown
    Writer:Unknown

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  3. Octonauts Season 5 Episode 3 - Whales of Mystery
    0.0/10(0 votes)

    S5:E3

    Shellington is excited to find the distinctive tooth of a very rare creature, the spade-toothed beaked whale. Now, the Octonauts must find the tooth’s owner, so Shellington can study it, and so that Peso can help replace its tooth. But it won’t be easy: spade-toothed beaked whales like to be left alone and can dive very deep.

    Director:Unknown
    Writer:Unknown

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  4. Octonauts Season 5 Episode 4 - Ghost Ship
    0.0/10(0 votes)

    S5:E4

    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 quick dip below the water line reveals to be hundreds of barnacles stuck to the ship. As the ship drifts into waters too cold for the barnacles, the Octonauts must find a way to tow it to warmer waters before it sinks or falls apart.

    Director:Unknown
    Writer:Unknown

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  5. Octonauts Season 5 Episode 5 - Feeding Frenzy
    0.0/10(0 votes)

    S5:E5

    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 to plan a rescue, Shellington and Dashi try not to become shark food!

    Director:Unknown
    Writer:Unknown

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  6. Octonauts Season 5 Episode 6 - Sawfish
    0.0/10(0 votes)

    S5:E6

    When Kwazii gets a case of pirate hiccups, he and Peso go up the river in search of a pirate doctor’s treasure that can cure him.

    Director:Unknown
    Writer:Unknown

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  7. Octonauts Season 5 Episode 7 - Nautilus
    0.0/10(0 votes)

    S5:E7

    Kwazii sets off on a monster hunt, and soon encounters a shelled creature called a Nautilus.

    Director:Unknown
    Writer:Unknown

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  8. Octonauts Season 5 Episode 8 - Grey Whales
    0.0/10(0 votes)

    S5:E8

    The Octonauts must help reunite a grey whale calf with his mother, keeping him well fed in the meantime.

    Director:Unknown
    Writer:Unknown

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  9. Octonauts Season 5 Episode 9 - Flying Squid
    0.0/10(0 votes)

    S5:E9

    The Octonauts meet a flying squid who can help Kwazii's grandfather, Calico Jack, retrieve his treasure.

    Director:Unknown
    Writer:Unknown

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  10. Octonauts Season 5 Episode 10 - Sea Lions
    0.0/10(0 votes)

    S5:E10

    When a wave traps Dashi in a cave with an injured sea lion, the Octonauts and sea lion pack must work together to save them. Using just some rope and a life buoy the pack fights against the waves to save them. Can they save them before it is too late?

    Director:Unknown
    Writer:Unknown

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  11. Octonauts Season 5 Episode 11 - Hawksbill Sea Turtle
    0.0/10(0 votes)

    S5:E11

    The Octonauts must guide an ill-stricken hawksbill sea turtle into cooler waters, in order for her to lay healthy eggs.

    Director:Unknown
    Writer:Unknown

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  12. Octonauts Season 5 Episode 12 - Wood Eating Catfish
    0.0/10(0 votes)

    S5:E12

    When Kwazii is found with an injury, he tells the tale of how he and Calico Jack encountered a fish that ate his peg leg.

    Director:Unknown
    Writer:Unknown

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  13. Octonauts Season 5 Episode 13 - Seven Sea Squirts
    0.0/10(0 votes)

    S5:E13

    The Octonauts help a band of algae-shooting sea squirts reunite in order to stop an outbreak in the reef.

    Director:Unknown
    Writer:Unknown

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  14. Octonauts Season 5 Episode 14 - Bullfrogs
    0.0/10(0 votes)

    S5:E14

    When the Vegimals accidentally bring bullfrogs into the Octopod, they must rally them up and bring them back home before the Octonauts find out.

    Director:Unknown
    Writer:Unknown

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  15. Octonauts Season 5 Episode 15 - Giant Sea Spiders
    0.0/10(0 votes)

    S5:E15

    Kwazii and Shellington get lost in the Antarctic’s deep seas, before meeting a family of giant sea spiders who may know a way out.

    Director:Unknown
    Writer:Unknown

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  16. Octonauts Season 5 Episode 16 - Great Octo-Bot Rescue
    0.0/10(0 votes)

    S5:E16

    When the Octo-Bots sink into a lake of boiling hot sulfur, Kwazii has to rescue them before the surface hardens.

    Director:Unknown
    Writer:Unknown

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  17. Octonauts Season 5 Episode 17 - Axolotl
    0.0/10(0 votes)

    S5:E17

    Captain Barnacles and Kwazii help a pair of singing female axolotls named George's mom (yellow) and George (pink) find a new watering hole, while protecting them from a hungry flock of herons.

    Director:Unknown
    Writer:Unknown

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  18. Octonauts Season 5 Episode 18 - Beavers
    0.0/10(0 votes)

    S5:E18

    In order for a school of salmon to reach their nesting area, the Octonauts must enlist help from a family of beavers.

    Director:Unknown
    Writer:Unknown

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  19. Octonauts Season 5 Episode 19 - Zombie Worms
    0.0/10(0 votes)

    S5:E19

    The Octolab is being eaten away by a group of zombie worms, tasking the crew with finding a new home for them.

    Director:Unknown
    Writer:Unknown

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  20. Octonauts Season 5 Episode 20 - Mud Volcanoes
    0.0/10(0 votes)

    S5:E20

    While exploring the Mariana Trench, Shellington and Dashi come across a path full of mud volcanoes and a creature in need.

    Director:Unknown
    Writer:Unknown

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  21. Octonauts Season 5 Episode 21 - Tiger Fish and Blind Shrimp
    0.0/10(0 votes)

    S5:E21

    The Octonauts encounter a tiger fish and blind shrimp who become separated.

    Director:Unknown
    Writer:Unknown

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  22. Octonauts Season 5 Episode 22 - Fish Mouth Louse
    0.0/10(0 votes)

    S5:E22

    The Octonauts help a creature find his louse friend who got lost and could be in trouble.

    Director:Unknown
    Writer:Unknown

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  23. Octonauts Season 5 Episode 23 - Deep Ocean Discovery
    0.0/10(0 votes)

    S5:E23

    Shellington’s sister and nephew, Pearl and Periwinkle, join him on a mission.

    Director:Unknown
    Writer:Unknown

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  24. Octonauts Season 5 Episode 24 - Silver Sea
    0.0/10(0 votes)

    S5:E24

    The Octonauts encounter a blob of glowing liquid drifting on the ocean’s surface.

    Director:Unknown
    Writer:Unknown

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  25. Octonauts Season 5 Episode 25 - Bicolour Fangblenny
    0.0/10(0 votes)

    S5:E25

    The crew must catch a mysterious fish that’s out to bite every creature in the reef.

    Director:Unknown
    Writer:Unknown

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Season 5 Ratings Summary

"Bluefin Tuna" is the best rated episode of "Octonauts" season 5. It scored 8.7/10 based on 3 votes. Directed by Unknown and written by Unknown, it aired on 3/27/2023. This episode is rated 1.7 points higher than the second-best, "Blue Whale Rescue".