In the midst of a serial abductor/killer's rampage, beautiful young Riley Lawson goes missing. When her desperate parents, Will and Kate, are contacted by her kidnapper, insufferable FBI Special Agent Hotchkiss takes charge of the case. But, from deep within the psychopathic subterranean world created by Otis Broth, Riley turns the tables on her tormentor, manages to escape and to contact her parents. Fed up with the inability of the FBI to find their girl, Will, Kate, and Riley's brother, Reed decide to take matters – and revenge – into their own hands.