Sean Penn scripted and directed this engrossing drama based on Jon Krakauer's best-selling book chronicling the true-life adventures of Christopher McCandless, a 22-year old college grad who, in 1990, dropped out of society to hitchhike to the Alaskan wilderness. Leaving all his possessions behind, McCandless (Emile Hirsch) embarked on a life-changing - and ultimately tragic - cross-country trek, encountering an eclectic group of people along the way. With Marcia Gay Harden, William Hurt, Vince Vaughn, and Hal Holbrook.