While vacationing in the Colorado mountains, Cassie is attacked by a wild animal. She manages to get to the local town in hopes of reporting the attack to the Sheriff. But she falls ill from the bite wounds and is found by the shifter guardian, Michael.Michael learns Cassie is half shifter, and the essence that had been dormant is now stirring due to the bites she received from a renegade shifter. The only way to save her life is to change her completely.They find themselves drawn to one another, and Michael uses the bond they have formed to teach Cassie about their ways, shifting, and submitting to his dominance in and out of the bedroom.