The Urchin Invasion
Octonauts · Season 3 · Episode 18
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!
Episode Details
Air date, runtime, timezone, and episode position.
Season
3
Episode
18
Air Date
21/Mar/2014
Air Time
18:50
Runtime
11 min
Overview
Episode summary.
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!
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