In a glass vessel, Tiny, the youngest pirate, discovers a mysterious map. It marks the location where a ship sank hundreds of years ago. This means one thing: right off the coast of Pirate Island Melele Pamu, there must be a wreck. Perhaps even a treasure. Tiny and his friends can’t be held back any longer. They secretly paddle out to sea. But as they dive into the gurgling depths among rays and thieving shrimp, a dangerous adventure and an incredible surprise await them.