Joe Maybe is an outlaw who assumes the identity of U.S. Marshall Jim Noonan after his death. Maybe is made the sheriff of Webb City by Judge Kyle and plots to rob the town bank. When Tessa, a former flame from New Orleans, shows up, Maybe persuades her to pose as his wife. The masquerade is further complicated by Maybe's rival, Sam Teeler, who plans to rob the bank with his own gang of outlaws.