Marshal Flagg, an aging lawman about to be retired, hears that his old nemesis, the outlaw McKaye, is back in the area and planning a robbery. Riding out to hunt down McKaye, Flagg is captured by McKaye's gang and finds out that McKaye is no longer the leader of the gang, but is considered just an aging relic by the new leader, a youngster named Waco. Waco orders Mackaye to sho...