Hardisty and O'Meara are loners who are not missed, but Juanito's father vows revenge and release for his son while Carruthers' sweet and brave sister, Ann, sets out on a perilous journey searching for him after his disappearance.
The fierce Comanches raid the hacienda to free Juanito just after Ann has arrived there to inquire about Geoffrey. The prisoners escape, and in a bargain with Chief Tomás, Hardisty rescues Ann from Don Alfredo's clutches. Hardisty must claim her as his "woman" to protect her from the Indians, something the highborn Ann scorns. After her injured brother dies, she must trust Hardisty as they escape across the desert with the bloodthirsty Mexicans behind them and the fearsome Indians in front of them...or perish.