When FBI special agent Maggie ODell and her partner, Tully, discover the remains of a young woman in a highway ditch, the only clue is a map leading them to spot where theyll find madmans next victim.

As the body count rises, Maggie must race against the clock to unmask the monster terrorizing Americas 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. . .