A radio reporter begins to suspect that a commentator at his station may be using her position to broadcast shipping information to enemy spies. With the help of the girl's sister, he sets out to expose the spy and her Nazi gang.

A police lieutenant is determined to bust the gang of crooks selling defective automobile tires.

When a prisoner on Death Row is "accidentally" killed just before his execution, a reporter smells something fishy...

A young intern is drafted and placed in the Army Medical Corps as a buck private and is none too happy about it. Injured, he is placed in the hospital where a Major comes by and explains how army doctors make important advances in medical science. The private is inspired and promises to make a good soldier. He is even more inspired when a nurse becomes his superior officer.

A mad doctor (Bela Lugosi) and his helpers (John Carradine, George Zucco) lure girls to his lab for brain work, to help his wife.

A wrongfully accused South Seas prince is executed, and returns as a walking tree stump.