Bat Masterson faces off with gambler and saloonkeeper Big Keel Roberts who is crushing the livelihood of another saloonkeeper and friend of Bat's. But it isn't guns at play, but rather a game of show-down poker.

Tough, hot tempered Sergeant Foley orders Bat Masterson out of Swan Valley. Reason: Bat has become interested in Foley's girl Molly Doyle, a dance-hall beauty. Although his life is threatened, Bat refuses to leave - and clashes with the redoubtable Foley.

Sometime-cattleman Bat Masterson wins a herd in a poker game. Ruthless rancher Roaul Cummings blocks his route to the Cheyenne stockyards. As he prepares to give battle, Bat finds a determined troop of other embattled ranchers backing his play.

Laura Hopkins calls to Bat Masterson for help. She and others are herding horses and breaking them for the sale to the army. When turmoil leads to gunfire, the inevitable happens: a stampede of wild horses.

Sportsman Bat Masterson admires a ferocious and promising young boxer. When he sees the young man being mishandled by an unscrupulous manager, Bat entices the manager into a poker game and wins the fighters contract.

Hunting guide Bat Masterson takes on a party bent on hitting bear. As the expedition moves forward, Bat realizes that three of his companions are fugitives from murder and robbery charges in other states.