Cpl Aiden Kaas is an unsanctioned werewolf, turned without the Lycan Council's approval. While the Council ponders what to do with him, he is warned not to shift and to keep the very fact that werewolves exist a secret.
However, Aiden is a Marine assigned to a Marine Special Operations Team in eastern Afghanistan, and if there is a threat to his team, he will do anything, to include shifting to his werewolf form, to protect them.
With a faction of the Council wanting his extermination, his own government trying to discover just what he is and how it can use him, and a rogue werewolf warlord trying to protect his smuggling routes through the Hindu Kush, Aiden has to navigate a tricky minefield to both keep the secret and to merely stay alive.