An arson investigator goes undercover to break up a ring that sets fires in order to collect the insurance.
Joe Martin
Jane Jennings
Pete Purdy
Betty - Fender's Secretary
Frederick P. 'Fred' Fender
Grandma
Deputy Fire Chief / Narrator
Murph, the undercover man (as Gaylord Pendleton)
Thomas Peyson
Hubbell
Mrs. Peyson
Al, Night Watchman
Detective
Junior Peyson
Race Track Aannouncer (voice, uncredited)
