Octonauts
Urchin Invasion
Season 3 Episode 18 of 20
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
Octonauts airs on CBeebies HD at 12:45 PM, Saturday 26 April. (Subtitles, repeat, audio description.)
Topics
Children's ➝ Youth Programmes
Cartoons ➝ Puppets
Pre-school