Equine veterinarian Gail McCarthy is up for the challenge of a lifetime: two weeks alone deep within the winding trails of the Sierra Nevada Mountains in California. Needing a break from the stress of everyday life and a somewhat trying long-distance relationship. Gail is eager to depart on a solitary pack trip with only two horses and her faithful new puppy for company. The night before Gail is to leave, she stumbles across a wounded man lying in an open meadow next to a gun. He has apparently tried to kill himself, and despite the immediate help that Gail gets, he sadly succeeds. But not before he mumbles several enigmatic words, leaving Gail to wonder if this might have been more than a simple suicide.