Canadian Mountie Steve Wagner captures a German Luftwaffe officer on a spy mission, who later escapes from the prison camp. To catch the spy ring, the Mounties employ a ruse so that the spies, believing Steve to be sympathetic, enlist him in their plans.
Bandleader Kay Kyser takes his troupe of nutty musicians, goofball comics and pretty girl singers on a tour around the world to entertain the troops during World War II.
When an out-of-work Chicagoan travels west as a hobo on a freight train, he finds himself falsely accused of murder.
