The year is 1870 and Sister Brigid, left stranded on the harsh West Texas desert, buries the only link to her past in hopes no one ever learns the truth about her. She is found by Miguel Cortega, a charming and unpredictable young man who is running from his own deadly secret. Despite Miguel's attempts to part ways, circumstances force the two to team up and cross the most savage and unforgiving land known to man. As they fight the Apache and the elements for survival, they form a forbidden bond that could save them or destroy them.