Clay Dryden, a member of the band of outlaws known as the Sankey gang is challenged to a gunfight by the brother of the gang leader and kills him. But Sankey soon discovers that his brother hadn't any bullets in his revolver so he vows to avenge his brother's death. When Sankey catches up with Clay in the town of Crossville, he discovers that the former outlaw has set up a medical practice. But will the gang leader spare him? With the odds stacked against him, Clay's future as the town's doctor hangs very much in the balance...