A man wakes up naked, alone, and the apparent victim of a terrible plane crash. However, there are no other survivors and, strangely enough, no evidence of fatalities either. With no memory of how he got there and limited survival skills, he must withstand the elements, face vicious predators, and search for clues as to how and why he came to be in this wilderness. Overwhelmed with these tasks, he begins to feel a growing paranoia that someone or something is watching him.