Robert Mitchum and Barbara Bel Geddes star in this taut Western thriller about a gunslinger who realizes he's been hired to be the villain in Blood on the Moon. The Texas Frontier--Jim Garry (Mitchum) rides into town, quickly becomes caught in a simmering confrontation between homesteaders and cattle ranchers ... and falls in love with Amy Lufton (Bel Geddes), the daughter of a local rancher. He also falls in with an old mercenary friend, Tate Riling (Robert Preston), until he realizes that Riling is using him in a ploy to swindle Amy's father. Now, two old friends face off in a bloody showdown from which only one will leave alive. Based on the novel Gunman's Chance by Luke Short.