When a crooked sheriff murders his employer, William "Billy the Kid" Bonney decides to avenge the death by killing the man responsible, throwing the lives of everyone around him into turmoil, and endangering the General Amnesty set up by Governor Wallace to bring peace to the New Mexico Territory.

Paul Newman
as Billy The Kid

Lita Milan
as Celsa

John Dehner
as Pat Garrett

Hurd Hatfield
as Moultrie

James Congdon
as Charlie Boudre

James Best
as Tom Folliard

Colin Keith-Johnston
as Tunstall

John Dierkes
as McSween

Robert Anderson
as Hill

Wally Brown
as Deputy Moon
John Chard
The demythologised account of Billy The Kid. Billy Bonney is taken in by kindly rancher John Tunstall, he starts to learn respect and education, but then Tunstall is cruelly murdered. Bonney having been robbed of the one man he respected, shows his darker side and vows to seek revenge on Tunstall...