Five criminals are arrested after a bank-robbery. One escapes, and the police officer in charge of transporting them arrests a new person at random to cover up for his negligence.
Sam Moran is a Honolulu charter-boat captain who leads fishing expeditions in the tropical paradise. When his daughter is found murdered at the party of a wealthy young playboy, he seeks the truth about the murder.
Two young boys, play hooky from school in order to explore an ultramodern world's fair. They take in the many marvelous scientific and industrial exhibits, obtain literature, eat food, and generally run amok.