Chino Valdez (Charles Bronson) is a hard man just trying to get by in an even harder land, a violent loner barely making a living by taming wild mustangs on the open range. Then into his life comes Jamie, a young boy with no place to be, and Catherine (Jill Ireland), the haughty half sister of local cattle rancher Morrell. As Chino tentatively reaches out to both, he finds himself in more trouble than even he can handle... Morrell wants to fence off the land and forbids Catherine to see Chino again. Worse still, he wants Chino off the range and is prepared to go to any lengths to drive him away. The scene is set for one last brutal clash between the old ways of the West and the new..