When Pororo, Barnacles, and others Peso crash the Gup-H in the Yucatan Jungle, in order to get Coba the little octopus home, they have to dive in the Sac Actun Caves to reach the Caribbean Sea. Unfortunately, the caves challenge Barnacles' claustrophobia and the crew has no easy way of finding them. While the other Octonauts search for them on the Caribbean side of Mexico, Pororo, Barnacles, Peso and others must navigate their own way through with the help of Ryla, a cave-diving expert. But can the crew find them before they suffocate?
5 parts