When FBI special agent Maggie O´Dell and her partner, Tully, discover the remains of a young woman in a highway ditch, the only clue is a map leading them to the spot where they´ll find the madman´s next victim.áAs the body count rises, Maggie must race against the clock to unmask the monster terrorizing America´s highways, even if it means turning to a former foe for help. But as she gets closer to finding the killer, it becomes eerily clear that Maggie may be the ultimate target...