Chasing jewel thieves, Captain Carson and Magpie head for the border where Carson, posing as a Chinaman, opens a store that buys jewelry. To flush the thieves into the open, Carson wins all their money at poker. They agree to sell him the jewels but plan to kill him and keep both the jewels and the money.

Tim McCoy
as Captain William Carson

Nora Lane
as Midge

Ben Corbett
as Magpie

Stephen Chase
as Jim Wilson

Ted Adams
as Henchman

Donald Gallaher
as Henchman Tracy

Bob Terry
as Henchman Mac

Karl Hackett
as Joe Willis

Frank Wayne
as Messenger

Hal Carey
as Saloon Singer