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The Best Episodes of Octonauts Season 4

Every episode of Octonauts Season 4 ranked from best to worst. Discover the Best Episodes of Octonauts Season 4!

The Octonauts is a British children's television series, produced by Silvergate Media for the BBC channel Cbeebies. The series is animated in Ireland by Brown...
Genres:KidsAnimationAction & Adventure

Season 4 Ratings Summary

"Octonauts and the Walrus Pups" is the best rated episode of "Octonauts" season 4. It scored 6.8/10 based on 9 votes. Directed by N/A and written by N/A, it aired on 9/29/2015. This episode is rated 0.8 points higher than the second-best, "Octonauts and the Mantis Shrimp".

  • Octonauts and the Walrus Pups
    6.8/109 votes

    #1 - Octonauts and the Walrus Pups

    Season 4 Episode 1 - Aired 9/29/2015

    Captain Barnacles and his niece and nephew, Ursa and Orson, must rescue walrus pups who are stranded on a runaway ice floe, before it collides with a huge iceberg!

    Director: N/A

    Writer: N/A

  • Octonauts and the Mantis Shrimp
    7.6/108 votes

    #2 - Octonauts and the Mantis Shrimp

    Season 4 Episode 2 - Aired 9/30/2015

    The Octonauts must get 2 mantis shrimp to stop fighting before their powerful claw strikes destroy the Octopod.

    Director: N/A

    Writer: N/A

  • Octonauts and the Poison Dart Frogs
    8.3/107 votes

    #3 - Octonauts and the Poison Dart Frogs

    Season 4 Episode 3 - Aired 9/23/2015

    When a giant wave hurls Amazon River creatures up into the trees, the Octonauts must get them down safely, without disturbing poison dart frogs who live there.

    Director: N/A

    Writer: N/A

  • Octonauts and the Hidden Lake
    7.7/106 votes

    #4 - Octonauts and the Hidden Lake

    Season 4 Episode 4 - Aired 9/24/2015

    The Octonauts are exploring Antarctica, when Shellington discovers strange microscopic creatures living under the ice.

    Director: N/A

    Writer: N/A

  • Octonauts and the Baby Sea Turtles
    7.6/107 votes

    #5 - Octonauts and the Baby Sea Turtles

    Season 4 Episode 5 - Aired 9/28/2015

    As newborn baby sea turtles make their way to the ocean, the Octonauts must steer them clear a giant wave and hungry predators.

    Director: N/A

    Writer: N/A

  • Octonauts and the Octopod Mystery
    7.4/109 votes

    #6 - Octonauts and the Octopod Mystery

    Season 4 Episode 6 - Aired 9/25/2015

    When the Octopod breaks down, Tweak and the crew search for a missing part aboard an abandoned prototype of the ship, not realising something lives there.

    Director: N/A

    Writer: N/A

  • Octonauts and the Tree Lobsters
    7.6/105 votes

    #7 - Octonauts and the Tree Lobsters

    Season 4 Episode 7 - Aired 10/2/2015

    When a storm washes Peso onto a mysterious, rocky island, he meets a band of lobster-like insects thought to be extinct.

    Director: N/A

    Writer: N/A

  • Octonauts and the Convict Fish
    7.4/107 votes

    #8 - Octonauts and the Convict Fish

    Season 4 Episode 8 - Aired 12/14/2015

    The Octonauts evacuate the creatures living around a reef before a large archway collapses, but one stubborn convict fish refuses to move from her burrow.

    Director: N/A

    Writer: N/A

  • Octonauts and the Crawfish
    7.7/109 votes

    #9 - Octonauts and the Crawfish

    Season 4 Episode 9 - Aired 12/3/2016

    When a population of crawfish is stricken by illness, the Octonauts race to find a cure.

    Director: N/A

    Writer: N/A

  • Octonauts and the Surfing Snails
    7.8/105 votes

    #10 - Octonauts and the Surfing Snails

    Season 4 Episode 10 - Aired 9/6/2017

    When surfing snails are swept out to sea, it's up to Dashi and the Octonauts to save them.

    Director: N/A

    Writer: N/A

  • Octonauts and the Baby Gator
    7.7/106 votes

    #11 - Octonauts and the Baby Gator

    Season 4 Episode 11 - Aired 10/26/2017

    Kwazii adopts a baby alligator naming him Nipper, but when it escapes the Octopod, he and the Octonauts must rescue him.

    Director: N/A

    Writer: N/A

  • Octonauts and the Bomber Worms
    7.3/107 votes

    #12 - Octonauts and the Bomber Worms

    Season 4 Episode 12 - Aired 10/23/2017

    While diving down to the Midnight Zone, the Octonauts are attacked by bomber worms.

    Director: N/A

    Writer: N/A

  • Octonauts and the Flamingos
    7.3/107 votes

    #13 - Octonauts and the Flamingos

    Season 4 Episode 13 - Aired 12/4/2016

    The Octonauts find a lost flamingo chick separated from his family and they have to return him there before hungry alligators do!

    Director: N/A

    Writer: N/A

  • Octonauts and Operation Cooperation
    7.0/106 votes

    #14 - Octonauts and Operation Cooperation

    Season 4 Episode 14 - Aired 9/27/2017

    After Shellington crashes the GUP-D for the 3rd time, he and Kwazii team up with moray eels and grouper fish to help pick up the pieces and fix the vehicle before daylight occurs.

    Director: N/A

    Writer: N/A

  • Octonauts and the Kelp Monster Mystery
    6.8/105 votes

    #15 - Octonauts and the Kelp Monster Mystery

    Season 4 Episode 15 - Aired 10/24/2017

    Dashi teams up with her little sister Koshi to help the Octonauts solve a mysterious disappearance in the Kelp Forest. This is the second episode in which is unknown who sounded the Octo-Alert.

    Director: N/A

    Writer: N/A

  • Octonauts and the Hippos
    7.4/105 votes

    #16 - Octonauts and the Hippos

    Season 4 Episode 16 - Aired 9/20/2017

    Trying to return home from a mission along an African river, the Octonauts have trouble getting past a gang of large, mud-splatting, territorial hippos.

    Director: N/A

    Writer: N/A

  • Octonauts and the Yellow Bellied Sea Snakes
    7.7/106 votes

    #17 - Octonauts and the Yellow Bellied Sea Snakes

    Season 4 Episode 17 - Aired 9/13/2017

    When Peso gets stranded on a beach with a mass of poisonous snakes after a terrible storm, he and the Octonauts must somehow get them back to the ocean.

    Director: N/A

    Writer: N/A

  • Octonauts and the Loneliest Whale
    6.8/106 votes

    #18 - Octonauts and the Loneliest Whale

    Season 4 Episode 18 - Aired 10/1/2015

    The Octonauts follow a strange song to a lonely humpback whale.

    Director: N/A

    Writer: N/A

  • Octonauts and the Spinner Dolphins
    7.0/105 votes

    #19 - Octonauts and the Spinner Dolphins

    Season 4 Episode 19 - Aired 10/27/2017

    The Octonauts struggle to save a pod of spinner dolphins who seem to be just swimming in their sleep.

    Director: N/A

    Writer: N/A

  • Octonauts and the Coelacanth
    7.8/109 votes

    #20 - Octonauts and the Coelacanth

    Season 4 Episode 20 - Aired 5/29/2017

    While exploring a dark and spooky cave, The Octonauts find a strange fossil of a powerful prehistoric fish... but it may be more than just a fossil!

    Director: N/A

    Writer: N/A

  • Octonauts and the Emperor Penguins
    7.6/107 votes

    #21 - Octonauts and the Emperor Penguins

    Season 4 Episode 21 - Aired 12/16/2015

    The Octonauts journey across a dangerous expanse of ice to help a penguin mother get back to her family.

    Director: N/A

    Writer: N/A

  • Octonauts and the Tiger Shark
    7.5/106 votes

    #22 - Octonauts and the Tiger Shark

    Season 4 Episode 22 - Aired 5/27/2017

    When a hungry tiger shark eats the camera that Tweak's turtle friend Sandy gets in the Octopod, she and the Octonauts must rescue her before it eats everything in its path.

    Director: N/A

    Writer: N/A

  • Octonauts and the Coconut Crisis
    NaN/100 votes

    #23 - Octonauts and the Coconut Crisis

    Season 4 Episode 23 - Aired 10/25/2017

    Kwazii takes a vacation on Coconut Island where he gets hit by some coconuts. Then he and the Octonauts must help their old friends the Coconut Crabs discover who's stealing all their coconuts.

    Director: N/A

    Writer: N/A

  • Octonauts and the Sunfish
    6.6/105 votes

    #24 - Octonauts and the Sunfish

    Season 4 Episode 24 - Aired 5/28/2017

    When a huge sunfish enters the GUP-E, Peso and Kwazii must somehow get the large fish out of the Gup. Eventually they find out it's a Sunfish a fish with no fins.

    Director: N/A

    Writer: N/A