More dollars for the macgregors (1970)

Robert MacGregor and Gladys MacGregor is a marriage that is dedicated to hunting outlaws wanted by the justice. But instead of delivering them alive, kill them in order to steal from them and also collect the reward. She deceives them and he kills treason, winning the love of great gunslinger. But ambition leads them to face a cruel and cunning murderer who kills for Donna. However, a mysterious stranger appears, Ross Stewart which initially appears to be from Robert. However, when the latter's wife dies, he unveiled plans stranger ...