This Broadcast
Octonauts
12:55 pm - 1:05 pm Friday, October 2
CBBC
201
Urchin Invasion
Season 3 · Episode 18
The gang heads 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
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16x9
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