Bill Gastner, the reluctant sheriff of Posadas County, New Mexico, anticipates his last few days in office will be uneventful. That is, until local teen Matt Baca drives drunkenly into the back of Gastner's cruiser, then flees into the night. His eventual capture turns tragic when the boy becomes irrationally violent and takes a fatal tumble into oncoming traffic. Adding to the tragedy, Matt's father is found dead in his tiny kitchen.