During a camping excursion in the desolate regions of Texas, a family and their friends stumble upon a sinister ritual sacrifice at a vacant campsite. This accidental discovery sets them on a terrifying journey as they are chased by the satanic biker gang behind the ritual. Seeking refuge, they find themselves in a deserted church near the border, only to realize they are caught in the middle of an age-old conflict between the forces of good and evil.