When FBI Agent Mackenzie is assigned to investigate reports of a white slavery ring at the Arkansas women’s prison a ghost from the past meets her there. Carson Donaldson is back with a vengeance. No predator is safe from her evil ways. Mac knows all too well that nothing Carson does is simple, but getting her fellow agents to believe her is proving difficult. While former profiler Dr. Vaughn wants to study Carson’s mind, Mac is busy trying to figure out her real reason for showing up at the prison. As the bodies start to pile up, Mac knows who is responsible, just not how to catch her.