Two years after five of GTMO's deadliest detainees are freed, counter-terrorist agent Scot Harvath's girlfriend is murdered. When he learns the murderer's bloody signature glows with a radioactive isotope that's linked to a top-secret program tracking America's worst enemies, Scot demands answers. Livid at the stonewalling and apathy he encounters, Scot--in violation of Presidential orders--begins a quest for the truth that jeopardizes everything he once held dear.