Vain villain Dexter is trying to get the main part in a monster movie by any means.However, the director thinks Dexter looks too mechanical and 'unrealistic' and won't use him. Offended, Dexter decides to make the movie himself and kidnaps the director and his camera.

Chief Kapuna believes his long lost brother, Bunti, has returned to Iloka. A decade earlier, Bunti had gone missing at sea just after being crowned chief. Kapuna was crowned in Bunti's place, and so he is uneasy about his return. But nobody on the island has actually seen Bunti - only heard him whistle. So Flipper begins to investigate.