Octonauts - Season 3 Episode 18 : The Urchin Invasion 2025
7.087/10 by 46 users
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!
- Released: Jan 01, 1970
- Runtime: 00:15:14 minutes
- Genre: Kids, Animation, Action & Adventure
- Stars: Keith Wickham, Simon Greenall, Jo Wyatt, Rob Rackstraw
- Network: CBeebies
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Se-3 Ep-1. The Siphonophore 2013-09-04
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Se-3 Ep-2. The Water Bears 2013-09-05
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Se-3 Ep-3. The Cone Snail 2013-09-06
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Se-3 Ep-4. The Artificial Reef 2013-09-09
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Se-3 Ep-5. The Humpback Whales 2013-09-10
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Se-3 Ep-6. The Pelicans 2013-09-11
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Se-3 Ep-7. The Sea Pigs 2013-09-12
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Se-3 Ep-8. The Yeti Crab 2013-09-13
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Se-3 Ep-9. The Barracudas 2014-03-10
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Se-3 Ep-10. The Duck-Billed Platypus 2014-03-11
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Se-3 Ep-11. The Sea Skaters 2014-03-12
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Se-3 Ep-12. The Mudskippers 2014-03-13
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Se-3 Ep-13. The Harbour Seal 2014-03-14
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Se-3 Ep-14. The Lion's Mane Jellyfish 2014-03-17
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Se-3 Ep-15. The Red Rock Crabs 2014-03-18
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Se-3 Ep-16. The Sea Sponge 2014-03-19
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Se-3 Ep-17. The Immortal Jellyfish 2014-03-20
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Se-3 Ep-18. The Urchin Invasion 2014-03-21
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Se-3 Ep-19. The Hammerhead Sharks 2015-09-21
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Se-3 Ep-20. The Loggerhead Sea Turtle 2015-09-22
