Janice Logan

Four explorers are summoned to Peru by the brilliant physicist Dr Thorkel. They discover a rich source of radium and a half-mad Thorkel who shrinks them down to one-fifth their normal size when they threaten to stop his unorthodox experimentation.

Dr. Bartley Morgan covers up his profitable illegalities with the respectable veneer of a posh, highly profitable private practice, he runs with his nurse Margaret Hopkins. The FBI agent Robert Anders has to catch on to Morgan's illicit activities.

A wise-guy reporter and a tippling sportswriter acquire an unclaimed trunk with a corpse inside.

Lieutenant Palomino of the police must recover some important documents containing the formula for the antidote to a serious disease. With the help of the magician Fu-Man-Chu, they embark on an adventure filled with suspense, intrigue, and deception.

Jackie Cooper stars in this first film in the wholesome "Henry Aldrich" series of teen comedies.