Solita Obregon, along with a small group of Mexican Nationals, crosses the border illegally into a nightmare of terror. She has the drive and strength to enter the Chihuahuan Desert to start a new life, but once the border is crossed, she and her fellow travelers believe they are facing the worst hell imaginable as they suffer the severe heat, the lack of water and the rugged terrain. Two days into the journey, two of the group members are dead from the hostile environment. The third night, the full moon rises and with it a new terror. They soon realize they have become the prey of a savage beast. The isolation and inhospitable environment of the desert has hidden a secret for 300 years. Those who have stumbled on the mystery have died a violent death. They are alone and defenseless and there is no where to run.