Annie's sister, Tia, is missing. The police have basically given up, the PI she hired was worthless, and Annie decides Carson is her best, and last, shot at finding her sister. Carson's not so sure he's interested; he was looking forward to a long stretch of alone time on his ranch, enjoying starry nights and the mesmerizing glow of a good fire. Reluctantly, he allows himself to be pulled into the fray.As a psychologist and uniquely trained ex-Marine,...