An ex-con from Devil's Island enlists the support of the governor's daughter in exposing a prison mining operation.

Gil Lamb, window washer at the "Daily Record" has aspirations of becoming a reporter and marrying Carol Hughes, the city editor's secretary. When he hears of the disappearance of a town millionaire's nephew, he sets out, disguised as a nurse, for the millionaire's mansion to solve the case

Roy is an oil prospector. His efforts to get drilling rights on an old Spanish land grant are countered by gamblers from an off-shore gambling boat determined to control the land (and oil) themselves.

In the future (1970) the US sends a mission to the moon to investigate the building of a moon base.

Bomba the jungle boy swings into action when an elephant herd is threatened by ivory hunters.