James Blackthorn is an old Gringo living quietly in the green tropical valleys of Bolivia. He breeds horses and has a romantic friendship with a native woman. He’s getting on in years and wants to die at home, in the United States.

His real name is Butch Cassidy, one of the last and most famous outlaws from the far West. But the legend of his life has almost faded into oblivion as everyone believes him long dead.

As he crosses the high plateau on his way home, James encounters another rider, far younger and inexperienced. A Spanish mine engineer by the name of Eduardo Apodaca who is fleeing after having robbed a mine. Remembering his past and in need of money, Blackthorn decides to accompany the young man on his frantic flight across Bolivia. During this time the two men, although very different, will become friends amongst the violence and the loneliness of the Bolivian desert.

But Blackthorn is not the only one with a secret… In no man’s land and hounded by more and more armed men, both men will have no choice but to reveal their true intentions and face reality, once and for all.