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. After donating $25,000 in savings to charity, he abandoned his car and most of his possessions, burned all the cash in his wallet, and invented a new life for himself. Four months later, his decomposed body was found by a moose hunter.

Immediately after graduating from college in 1991, McCandless roamed through the West and Southwest on a vision quest akin to those of his heroes Jack London and John Muir. In the Mojave Desert, he left his car, removed its license plates, and burned all of his cash. He adopted the name Alexander Supertramp and, without money and belongings, he set off to experience nature in its purest form. Disregarding maps, McCandless sought a blank spot on the map to truly vanish into the wild.

Author Jon Krakauer constructs a narrative that examines the stirring facts of McCandless's short life. Admitting an interest that borders on obsession, Krakauer searches for the clues to the drives and desires that propelled McCandless into the wilderness. Krakauer reveals the allure of the American wilderness, the thrill of high-risk activities to certain young men, and the complex relationships between fathers and sons. When McCandless's innocent mistakes prove fatal, he becomes the center of media scrutiny. Krakauer brings McCandless's intense journey out of the shadows with deep understanding, devoid of sentimentality, and illuminates the provocative questions McCandless's story raises about nature, adventure, and the human spirit.