In April 1992 a young man from a well-to-do family hitchhiked to Alaska and walked alone into the wilderness north of Mt. McKinley. His name was Christopher Johnson McCandless. He had given $25,000 in savings to charity, abandoned his car and most of his possessions, burned all the cash in his wallet, and invented a new life for himself. His body - along with a camera with five rolls of film, an SOS note, and a cryptic diary written in the back pages of a book about edible plants - was found six months later by a hunter.