1: Episode 1: Chris McCandless

Chris McCandless felt the call of the wild ever since he was young. Upon graduating university, he shed away his old life and embarked on a grand adventure. He changed his name and traveled across the United States and south into Mexico, before ultimately following his dreams and hitch hiking north to the Alaskan wilderness. 
Sources: 
Into the Wild by John Krakauer 
The Wild Truth by Carine McCandless