Show cover for Octonauts

The Best Episodes of Octonauts Season 3

Every episode of Octonauts Season 3 ranked from best to worst. Discover the Best Episodes of Octonauts Season 3!

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 Bag Films but uses British voice actors. The TV series is based on American-Canadian children's books written by Vicki Wong and Michael C. Murphy of Meomi Design Inc. The Octonauts 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. The subject matter is reminiscent of Star Trek and Thunderbirds blended with Jacques Cousteau. Although it is science fiction as regards its technology, the exotic creatures and locations that the crew encounter are real marine animals in their natural habitats.

Genres:KidsAnimationAction & Adventure

Season 3 Ratings Summary

The best episode of "Octonauts" season 3 is "The Siphonophore", rated 7.6/10 from 5 user votes. It was directed by N/A and written by N/A. "The Siphonophore" aired on 9/4/2013 and is rated 0.7 point(s) higher than the second highest rated, "The Water Bears".

  • The Siphonophore
    7.6/10 5 votes

    #1 - The Siphonophore

    Season 3 Episode 1 - Aired 9/4/2013

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

    Director: N/A

    Writer: N/A

  • The Water Bears
    8.3/10 7 votes

    #2 - The Water Bears

    Season 3 Episode 2 - Aired 9/5/2013

    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: N/A

    Writer: N/A

  • The Cone Snail
    7.9/10 7 votes

    #3 - The Cone Snail

    Season 3 Episode 3 - Aired 9/6/2013

    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: N/A

    Writer: N/A

  • The Artificial Reef
    7.0/10 5 votes

    #4 - The Artificial Reef

    Season 3 Episode 4 - Aired 9/9/2013

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

    Director: N/A

    Writer: N/A

  • The Humpback Whales
    7.0/10 6 votes

    #5 - The Humpback Whales

    Season 3 Episode 5 - Aired 9/10/2013

    When a sardine swallows the key to a treasure chest, a humpback whale helps Kwazii track it down.

    Director: N/A

    Writer: N/A

  • The Pelicans
    7.3/10 6 votes

    #6 - The Pelicans

    Season 3 Episode 6 - Aired 9/11/2013

    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: N/A

    Writer: N/A

  • The Sea Pigs
    6.9/10 7 votes

    #7 - The Sea Pigs

    Season 3 Episode 7 - Aired 9/12/2013

    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!

    Director: N/A

    Writer: N/A

  • The Yeti Crab
    7.4/10 5 votes

    #8 - The Yeti Crab

    Season 3 Episode 8 - Aired 9/13/2013

    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: N/A

    Writer: N/A

  • The Barracudas
    7.4/10 5 votes

    #9 - The Barracudas

    Season 3 Episode 9 - Aired 3/10/2014

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

    Director: N/A

    Writer: N/A

  • The Duck-Billed Platypus
    6.9/10 7 votes

    #10 - The Duck-Billed Platypus

    Season 3 Episode 10 - Aired 3/11/2014

    While rescuing river creatures after a storm, the Octonauts find a strange egg and come under attack by stinging platypuses.

    Director: N/A

    Writer: N/A

  • The Sea Skaters
    7.7/10 6 votes

    #11 - The Sea Skaters

    Season 3 Episode 11 - Aired 3/12/2014

    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: N/A

    Writer: N/A

  • The Mudskippers
    6.8/10 5 votes

    #12 - The Mudskippers

    Season 3 Episode 12 - Aired 3/13/2014

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

    Director: N/A

    Writer: N/A

  • The Harbour Seal
    7.2/10 6 votes

    #13 - The Harbour Seal

    Season 3 Episode 13 - Aired 3/14/2014

    When Peso's patient, a remora fish, mysteriously disappears, the Octonauts enlist a unique undersea detective - a harbour seal.

    Director: N/A

    Writer: N/A

  • The Lion's Mane Jellyfish
    7.4/10 7 votes

    #14 - The Lion's Mane Jellyfish

    Season 3 Episode 14 - Aired 3/17/2014

    A lion's mane jellyfish gets its long and stingy tentacles tangled in the bubble engine, unintentionally flooding the Octopod and causing havoc.

    Director: N/A

    Writer: N/A

  • The Red Rock Crabs
    6.7/10 6 votes

    #15 - The Red Rock Crabs

    Season 3 Episode 15 - Aired 3/18/2014

    When Shellington and the crew try to gather some skittish crabs who have drifted away from home, they get help from some old friends.

    Director: N/A

    Writer: N/A

  • The Sea Sponge
    6.8/10 6 votes

    #16 - The Sea Sponge

    Season 3 Episode 16 - Aired 3/19/2014

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

    Director: N/A

    Writer: N/A

  • The Immortal Jellyfish
    7.9/10 7 votes

    #17 - The Immortal Jellyfish

    Season 3 Episode 17 - Aired 3/20/2014

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

    Director: N/A

    Writer: N/A

  • The Urchin Invasion
    7.8/10 6 votes

    #18 - The Urchin Invasion

    Season 3 Episode 18 - Aired 3/21/2014

    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: N/A

    Writer: N/A

  • The Hammerhead Sharks
    6.8/10 6 votes

    #19 - The Hammerhead Sharks

    Season 3 Episode 19 - Aired 9/21/2015

    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: N/A

    Writer: N/A

  • The Loggerhead Sea Turtle
    7.2/10 6 votes

    #20 - The Loggerhead Sea Turtle

    Season 3 Episode 20 - Aired 9/22/2015

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

    Director: N/A

    Writer: N/A