The Octonauts and the Convict Fish

The Octonauts and the Convict Fish is the 8th episode in the 4th series of Octonauts.

Plot synopsis
When a archway is about to collapse into the reef, The Octonauts must warn creatures around the area. However, Peso comes across one mother convict fish who never wants to leave her burrow.

Appearances

 * Gilbert and Mama
 * All Octonauts