The Octonauts follows a team of adventure heroes who dive right into action whenever there is trouble under the sea. In a fleet of amazing aquatic vehicles, the Octonauts explore incredible new underwater worlds, rescue wonderful sea creatures, and often save the day before returning safely home to the Octopod.

When a huge sea monster attacks the GUP-A, Professor Inkling wades in. He thinks the monster is his long-lost cousin Irving crying out for help! Now it's all hands on deck in the hunt for the super-sized giant squid. Octonauts, let's do this!