Nik, former Russian intelligence, is an unusual werewolf. He spent his entire life with humans, only learning recently others of his kind existed. After helping Team Greywolf in a recent operation, Nik reluctantly joins the team. His only goal is to find, Saskia, an escaped serial killer from his last mission, and bring her to justice.
Emma and Nik are assigned a covert mission to find out who is attempting to create werewolf men, found dead and mutilated during the failed transformation. Emma and Nik must put aside their national loyalties and mutual sexual tension to find the culprit. Their assignment is dangerous, not only to their lives, but to their hearts.