U.S. Marshals Dave Willis (Johnny Mack Brown) and Sandy Barrett (Milburn Morante) , traveling incognito to investigate the robbery of a shipment of Mexican Government gold, rescue Kathy Martin (Janes Adams) from an outlaw ambush, after her father Joel Martin (Steve Clark), publisher of the Latigo newspaper, has been wounded. Later, Martin is killed, and Bull Jackson (Marshall Reed), who claims to have seen the crime, accuses Dave of the murder. Dave reveals he is a U.S. Ranger and Sheriff Doss (Bud Osborne) releases him. Roger Bigsby (Hugh Prosser) , co-owner of the newspaper and secret leader of the outlaw gang, sends Jackson to ambush Dave, who escapes. Bigsby, learning that Sonny Lang (Myron Healy) , a notorious gunman once jailed by Dave is being released from prison, sends for him and hires him to get rid of Dave, who is close to discovering that the stolen gold has been cast as newspaper type and shipped east.