Isa dedicated her life rescuing survivors stuck in the old world. Together with her team she protected them against the beasts that came out of the darkness and devoured and mutilated their world into a realm of monsters no human could belong to. When betrayed and left behind to satiate the beasts she comes face to face with the Acquisitions Team, who she believed was part of the beasts. What happens when everything she thinks she understands is called to question and the Alpha's decide they not only want to take back the world from the monsters but also that they want to possess the female with an unclear past and violence in her veins?