The Octonauts are a team of undersea adventurers who are always ready to dive into action! Their mission: to explore new underwater worlds, rescue amazing sea creatures and protect the ocean. Join the Octonauts aboard the Octopod as they come face to face with a trio of pesky Cookiecutter Sharks, venture inside a Whale Shark to rescue Dashi, look after an Injured young Lemon Shark and stop a Whitetip Shark who is chasing the Gup-A!

Captain Barnacles tangles with a Colossal Squid who has his hooks in the Octopod, Peso babysits a bunch of penguin chicks stuck in a blizzard, Kwazii has a shocking encounter with an Electric Torpedo Ray, and much more!

Captain Barnacles leads a mission to rescue Dashi, who is trapped inside a giant whale shark, and Kwazii takes to the skies to retrieve a precious book from a school of flying fish! Peso tries to bandage a Great White Shark without becoming his lunch, and much, much more!