Chief Kapuna's leadership is threatened when Dexter steals his crown, which should glow as a sign, that he is the rightful chief. So when the fake crown fails to glow, the villagers doubt Chief Kapuna's leadership. However, Flipper and Lopaka realize there has been a switch and swap the crowns back, just as Dexter is about to crown himself King of Quetzo.

Jojo, a little blue fish, who is held up to his brothers' ridicule every day, is unexpectedly given the chance to assert himself, when he helps Flipper and Lopaka to save Dexter, who is buried alive in a submarine cave. So Jojo finally has confidence in himself, and a new-found respect from his brothers.