Tom Mitchell is an insurance investigator and Fire Capt. Joe Dugan is chief of the police department's arson troubleshooters. Tom and Joe team up to solve a particularly vicious series of deliberate fires. A man has been killed in one conflagration, so the villains have a murder rap hanging over them.
Frank Albertson
Robert Armstrong
Grace Albertson
Byron Foulger
Chester Clute
Jerry Jerome
Arthur Loft
Rod Rogers
Stewart Garner
Frank Wayne
Ed Cassidy
Casey MacGregor
Herman Scharff
Ezelle Poule