In the future, medical technology has advanced to the point where people can buy artificial organs to extend their lives. But if they default on payments, an organization known as the Union sends agents to repossess the organs. Remy is one of the best agents in the business, but when he becomes the recipient of an artificial heart, he finds himself in the same dire straits as his many victims.

Creatures, bound by the blood of the wolf, that can kill with curses and move at lightening speed, watching the night sky for the rise of the blood-red crescent moon. They are SKINWALKERS. They feed on our flesh and thirst for the taste of human blood. The red moon signals each pack, divided by principles, hell bent to survive an ancient prophecy.