A big poker game was starting in San Francisco, but the Gambler's number one priority was taking care of his young son. Country music star Kenny Rogers stars as Brady Hawkes, a high-rolling frontier gambler who has been summoned to Yumaito rescue the son he never knew. Along the way Brady befriends Billy Montana (Bruce Boxleitner), a young Easterner who fancies himself as a professional poker player. Brady teaches Billy a few card and life lessons during their journey, and the end up forming strong team. Onboardia train to Yuma, the duo comesito the aid of Jennie Reed (Lee Purcell), a reformed prostitute who is being pursued by the unprincipled railroad baron Arthur Stobridge (Harold Gould). While trying to reach their individual goals, Brady and Billy find themselves dealing in high stakes poker with Stobridge and slugging it out with tough outlaws in a bar room standoff.