Two college students, while on an archaeological dig in Arizona, become entangled in a series of events that will put both of their lives in peril. After a tragic accident, Toni, realizing the only way to save her friend, Wes, is to seek help, sets out on her own. In the unforgiving desert, she loses her bearings. Encountering not only the perils of nature but the perils of man, she is forced to defend herself or lose her life. A badly injured Wes, left with water, supplies and shelter, begins to wonder if the desert sounds and shadows around him are real or imagined as his fever continues to spike. A mountain lion and a pair of coyotes, enticed by the smell of blood, take turns circling his tent. Meanwhile, unknown to either Wes or Toni, a maniacal militia leader has built an armed compound in the area and does not look kindly on trespassers. Will the combined assistance of a Maricopa County Sheriff's deputy, a Native American father and son and a gregarious long-haul trucker help to solve Toni's disappearance? Will Wes Davidson survive his encounters with the animals?