A lazy, raggedy drifter named Trinity (Terence Hill) rides into a town where his horse-thief brother Bambino (Bud Spencer) is posing as the sheriff after leaving the real one for dead. Meanwhile, a gang of outlaws is involved in a fray when their leader decides that he wants the farm-land owned by a group of Mormon farmers. Bambino grudgingly joins his brother to lay the smack down on the evil land baron...