Emily Bontrager just graduated high school near the top of her class. She'll be leaving for Yale in a few weeks but she wanted one more trip to the beach with her friends. Zack Anderson just graduated Princeton. He's on his way to something, he just doesn't know what, but he wanted one more camping weekend in the woods with his friends. There's no chance these two divergent courses of life should intersect, but they do, in the most impossible place, under the most horrific circumstances. With a heavily armed madman on their heels, Zack and Emily find themselves running for their lives in the deep woods of Virginia near the Appalachian Trail, with nothing but their wits to survive. The wilderness is unforgiving, their pursuer is relentless and at some point, their luck is going to run out. All they have is each other, and an absolute refusal to die.