The stars of this book are the cowboy wolf-shifters who are in an organized pack and must fight vampires who are trying to kill them all. The sister of the leader, Maeve Grey, is embroiled in the whole plot and the bloodsuckers are trying to find her to use her in an experiment that they think will help them defeat the wolf-shifters. She must try to get away from the vampires and the only person/shifter who can help her is a disgraced outlaw, former Grey Wolf, Jared Black. Jared has his radar tuned into Maeve! He lost her once but swears that that will never happen again. Things are getting HOT on the range!