Bat Masterson roams the frontier and defends the innocent.

Bat makes an appeal to the governor to pardon a gunfighter because of his father's war service.

Bat becomes the only remaining witness for the prosecution in an upcoming murder trial in Wyoming as the father of the accused man either intimidates or kills anyone able to testify.

Bat goes to Jackson Hole, Wyo., to investigate the murder of an old friend at the request of his daughter; the family's freight business faces bankruptcy due to the unsolved murders of its drivers.

Bat Masterson's friend asks for help when rival gambling house owner Big Keel Roberts threatens his casino, with the conflict coming down to a poker game between Bat and Roberts for ownership of both establishments.