No one makes a more unlikely outlaw than young George LeRoy Parker, grandson of a Mormon bishop. But at 16, Parker throws in with Mike Cassidy, a shrewd old bandit who has seen something in the boy that nobody else has--the courage of a cougar and the heart of a renegade. Now old Mike has taught the kid everything he knows, and when he's done, there'll be no outlaw more feared, hunted, or idolized than George LeRoy Parker, alias Butch Cassidy.