U.S. Marshal Nelson Lane is trying to aid his deputy in evicting Lucky Graber, a failed Wyoming rancher, when a dead man is found on Lucky's land, apparently killed in a hunting accident. The victim, Gino Bonelli, took an interest in Lucky's ranch shortly before he was killed, though the land is worthless as far as Nelson and everyone else in the town of Gillette is concerned. Then Lucky Graber disappears, and the victim's gangster brother Bruno arrives...