Right before the stage arrives a young man rides up to the Sherman ranch asking Jess if he and his horse can have some water to which Jess readily agrees. The stage pulls up and a lone passenger Frank Mannus gets out. The man fires his pistol at Mannus making a flesh wound in his left arm. Slim stops the boy while Jess helps Mannus. As Daisy dresses the wound, Mannus reveals the boy is Billy O'Neill, the brother of Slim's one time love, Abbey. After five years in prison, Frank Mannus is returning to Laramie to reopen the Nugget Casino and with him will be Abbey O'Neill. Abbey's return kindles old feelings with Slim but all isn't as it seems and when Abbey's brother is killed, Sheriff Cory asks Slim to take Mannus' offer of learning the casino business. It seems that Mannus is about to sell some counterfeit plates to a very nasty eastern syndicate and Cory needs help until the marshals arrive. The presence of the plates in Laramie puts Abbey, Slim, Jess Harper and Mort Cory in danger ...