When young Hunter recruit Kayla Steele is bitten by a werewolf, she thinks it’s the end of her world. However, little does she know that the real end of the world is not far off. Master vampire, Harlequin, has made a deal with the devil, and plans to commit the ultimate sin by killing an angel and triggering the Third War in Heaven... which could wipe out mankind forever. Kalya must join forces with her ultimate enemies, the werewolves, in order to stave off Armageddon and save the man she loves from the clutches of Hell - or die trying.