Hans Memling, a young intellectual, patriotic German, is secretly opposed to the Nazi regime. With the aid of Gustav Schultz, Father Pommer, Anna Wahl and others, he is gleaning accurate information from foreign radio broadcasts and distributing it through Germany with an underground-press operation.

Marshal Tim Smith is sent to Rawhide to battle rustlers. When the outlaw gang attempts to kill the new Marshal, they get the wrong man. Tim puts his identification on the dead man and poses as a known outlaw. This gets him into the gang where he is given the job of posing as the new Marshal.

Air-race champions "Speed" Leslie and Branda Fowler combine to open a very profitable airplane service that flies patients to other cities for special treatment. Gangsters soon move in and offer to take over, without an invitation.