Al Burton, an unscrupulous money lender, not only endeavors to have his funds returned, but also plans to gain control over the properties on which he has advanced finances by having his henchmen see to it that the debtor cannot meet the note.When he kills "Dad" Mason, father of Betty Mason, Burton is brought face to face with a mysterious avenger, known as the Dude Cowboy, but never gets close enough to put him out of the way.Burton also finds his plans continually upset by a lummox cowhand, Tod "Ace" Carter, who has the faculty of being in the wrong place at the right time. Burton is prodded into reckless action by the actions of the Dude Bandit, "Ace" in disguise.