Hoppy goes undercover as a gambler from the East when Bar 20 cattle are stolen by unknown rustlers. Brennan/Talbot are twin brothers (one a casino owner, the other a rancher) and Hoppy believes they provide alibis for each other while one is out committing crimes. Hoppy gets a job in the casino to learn more but is exposed when a gambling gunslinger notices him.
as Hopalong Cassidy
as Lucky Jenkins
as Windy Halliday
as Barbara Hamilton
as Earl Brennan / Dave Talbot
as Tom Hamilton
as City Marshal
as Henchman Ewing
as Pierce
as Lane
as Hamilton Ranch Cowhand
as Deputy
as Card Player
as Townsman
as Baker
as Card Player
as Winning Card Player
as Barfly
as Deputy
as Bartender at Brennan's Place
as Card Player
as Barfly
as Burly Cowhand
as Card Player
as Jury Foreman
as Barfly
as Barfly
as Martin
as Henchman
