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.