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. On a trip to see Tweak's pal, Sandy the leatherback sea turtle, the Octonauts lose power in the Octopod. In order to get to Sandy in time, Captain Barnacles and the crew recruit some friendly electric torpedo rays to give the Octopod a jump-start!