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.
Tom Mitchell
Fire Capt. Joe Dugan
Judy Mason
Amos Baxter
Sam Purdy
Mike C. Crandall
Cyrus P. Clevenger
Nick
Bill Roberts
Tracy
Fire Chief O'Neill
Fireman O'Malley
Rawlins
Miss McKee, Arson Squad receptionist
