Bloodstream

Werewolves! They're everywhere!
In a world infested by monsters, new rules must be obeyed.
Jack's job is to protect werewolves from vigilantes. He's a good cop, if a tad reckless. As he discovers what caused the initial outbreak fifty years ago he also uncovers an intricate plot to eradicate what's left of mankind...and it involves his bloodline.
Jack is vicious, gifted, and lucky but that might not be enough to stop the apocalypse.