"To investigate a gold-shipping scam, a postal inspector goes undercover and tries to infiltrate the gang he believes is responsible."
George O'Brien
as Dan Clark
Virginia Vale
as Caroline McKay
Hobart Cavanaugh
as J. Horatio Boggs
Roy Barcroft
as Dude Elliott
William Haade
as Slim
Carl Stockdale
as Charlie Lait
Glenn Strange
as Bill Hoagland
Harry Cording
as Pete Brannigan
Martín Garralaga
as Pedro
Ethan Laidlaw
as Wheeler
Tom London
as Dolan - Henchman
Hank Bell
as Suspenders Customer (uncredited)
William Benedict
as Happy (uncredited)
John Bose
as Townsman (uncredited)
Bob Burns
as The Sheriff (uncredited)
Jim Corey
John Dilson
as Jim Pierce - Postal Inspector (uncredited)
Art Dupuis
as Henchman (uncredited)
Nellie Duran
as Rosa - Pedro's Wife (uncredited)
Frank Ellis
as Prospector (uncredited)
Lloyd Ford
Billy Franey
as Soap Customer (uncredited)
Clem Fuller
Herman Hack
Al Haskell
Dick Hunter
Sid Jordan
as Cheated Miner (uncredited)
Pee Wee King
as Musician - Pals of the Golden West (uncredited)
Elmo Lincoln
Nora Lou Martin
as Singer - Pals of the Golden West (uncredited)
Lew Meehan
as Barfly (uncredited)
Frank Mills
Bruce Mitchell
as Bartender (uncredited)
Buck Moulton
as Prescott Townsman (uncredited)
Herman Nowlin
as Stagecoach Guard (uncredited)
William J. O'Brien
as Townsman in Saloon (uncredited)
Jack O'Shea
as Saloon Brawler (uncredited)
George Sowards
Joe Phillips
as
Mike Donovan
Lucius O. Croxton
Art Direction
Van Nest Polglase
J. Roy Hunt
Cinematography
Robert Russell Bennett
Original Music Composer
Lee S. Marcus
Executive Producer
Kenneth Holmes
Assistant Director
John C. Grubb
Sound Recordist
Dave Dreyer
Norton S. Parker
Story
Frederic Knudtson
Editor
Paul Sawtell
Music
Roy Webb
Harry J. Wild
Still Photographer
Edward Killy
Director
Morton Grant
Screenplay
Arthur V. Jones
Bert Gilroy
Producer