Octonauts - Season 3 Episode 18 The Urchin Invasion
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!
- Genre: Kids, Animation, Action & Adventure
- Studio: CBeebies, Tencent Video
- Keyword: submariner, oceans rescue, anthropomorphic animal, animation, discovery kids
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