Rowdy Sanderson, a special agent for the United Shifter Force, a group of jaguars and wolves who aid shifters in trouble and deal with those who are trouble, isn't even one of them. But he wants to be a wolf in the worst way. When a special agent needs help at her USF branch in Ely, Minnesota, he volunteers because he's the only one in Houston without a family for the holidays. Maybe he will still get his Christmas wish-to be a wolf shifter like some of his friends and coworkers so he will have their "superpowers" to do his job.

Justine Winters is grateful the director of the USF is sending a special agent to her branch in Ely to aid her if she gets swamped. He's really hot, according to the photos the director sent her of Rowdy, but is he a wolf or a jaguar? Preferably a wolf. But then she learns he's human! No one's supposed to know that shifters exist. No way will he be able to sniff out shifters and assist her. She reluctantly agrees to accept him-figuring she'll have to put him on desk duty.

All that changes when she meets the real man-who desperately wants to be a wolf, who grows on her just like the director said he would, who risks his life for shifters, who she defends to others of her kind for working with the USF. But being the one to bite him has consequences and nothing's turning out the way she planned.