A desperate mother takes Jenny Jones' place in front of a firing squad in exchange for Jenny's promise to see her daughter safely to California. Though she and the six-year-old Graciela get off to a rocky start, Jenny will do everything in her power to keep her promise, even with the child's cousins in hot pursuit. Then she is mysteriously drawn to the handsome cowboy Ty Sanders, and though neither know it yet, their purpose is the same.