Outlaw Trail: The Treasure of Butch Cassidy prologue scene set in Bolivia in 1908. Butch Cassidy writes a letter to his family, enclosing a belt buckle engraved with a treasure map. Cassidy and his accomplice, Harry Longabaugh (the "Sundance Kid"), attempt to elude capture when their hideout is surrounded by Bolivian police. The film then shifts to Circleville, Utah, in 1951, where Butch Cassidy's 16-year-old great-nephew, Roy Parker, defends his infamous ancestor's reputation despite the opposition of Sam, his stern grandfather, Cassidy's younger brother. Sam resents Roy's interest in Cassidy, even acquiescing in the boy's brief jailing on a trumped-up charge, where he scolds him, "I spent
Butch Cassidy and the Sundance Kid alerts the local police, leading to a gunfight with the outlaws. They take cover in a building but are both seriously wounded, after Butch makes a futile attempt to run to the mules in order to bring more ammunition, while Sundance provides cover fire. As dozens of Bolivian soldiers surround the area, Butch suggests the duo's next destination should be Australia. They charge out of the building guns blazing. William Goldman first came across the story of Butch Cassidy in the late 1950s and researched it on and off for eight years before sitting down to write the screenplay. Goldman