On the run and watching over his shoulder for monster hunters, Tobe White decides to visit Shauna and her moon wolf family in Boise, Idaho. He learns his ex-boyfriend Keith hasn't forgiven him for his mistakes, and he dejectedly agrees to stay one night with Shauna's family before he returns to the vampire coven.
But his plans change abruptly when Shauna's baby brother Reggie is stolen from his crib and replaced with a feverish changeling. The wolves are ready to give up hope of finding their missing cub, and they refuse to touch the changeling. Tobe takes it upon himself to care for the sick infant and find his parents to propose a swap.
It sounds like a good plan in theory, but first Tobe must cross dimensions into the mystical plane, something no human has done in centuries. Even if he can somehow accomplish this nigh-impossible feat and convince the local elves not to use him for archery practice, finding a nomadic tribe of trolls in a hostile forest will make all his past misadventures seem like a walk in the park.