Natural Selection

It started as a peaceful visit to his weekend getaway in the Sierra foothills. Hours later teacher Phil Lynch finds himself living a nightmare. Paralyzed and taken prisoner, his body is used as an unwilling host in a bizarre and grisly series of parasitic infections. As the terrible truth about the alien visitation unfolds, a small group of captives must first understand - and then fight for escape from the terror that holds them. Their struggle will stretch razor-thin the human will to survive.