Aisha's pet fish, Sir Salty, is lonely and depressed. She wants to cheer him up by having a castle for his fish bowl. Unfortunately, that idea did not work. Therefore, Aisha makes the decision to send her fish to a coral reef and release him for good. On the way, however, a giant octopus grabbed on the submarine with its tentacles. How Jett is supposed to untangle himself and the submarine from the octopus' big grip?