Hurricane Portia is causing chaos, even at sea! Uma, the seahorse, Worrall, the penguin, Kaia, the seagull, and Fenena, the tuna, stumble across a submarine. To their surprise, the submariners appear to have run into trouble! Follow these sea creatures' adventures, hear of their vivid past, and share in their heroic deeds together with aquarium divers and a rescue submarine.
Can they help save the trapped submariners? Find out in this exciting tale.