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Original release 21 mars 2014
Previous episode S03E17 - The Immortal Jellyfish
Number S03E18
Country United Kingdom
Genres Action, Adventure, Animation, Children, Comedy, Family
External links TheTVDB page
IMDB page
TheMovieDB page
Last update 20 août 2022 - 19:49
on 11 databases

The Urchin Invasion

40 members

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!

Next episode

S03E19 - The Hammerhead Sharks

Episodes Actors

Episodes (23)

Season 3

S03E01 - The Siphonophore

4 septembre 2013

S03E02 - The Waterbears

5 septembre 2013

S03E03 - The Cone Snail

6 septembre 2013

S03E04 - The Artificial Reef

9 septembre 2013

S03E05 - The Humpback Whales

10 septembre 2013

S03E06 - The Pelicans

11 septembre 2013

S03E07 - The Sea Pigs

12 septembre 2013

S03E08 - The Yeti Crab

13 septembre 2013

S03E09 - The Barracudas

S03E10 - The Duck-Billed Platypus

S03E11 - The Sea Skaters

S03E12 - The Mudskippers

S03E13 - The Harbor Seal

S03E14 - The Lion's Mane Jellyfish

S03E15 - The Red Rock Crabs

S03E16 - The Sea Sponge

S03E17 - The Immortal Jellyfish

S03E18 - The Urchin Invasion

S03E19 - The Hammerhead Sharks

S03E20 - The Loggerhead Sea Turtle

S03E21 - The Very Vegimal Christmas

10 décembre 2013

S03E22 - The Over Under Adventure

S03E23 - The Great Arctic Adventure

17 décembre 2014

Actors (5)

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