Butch Cassidy and the Sundance Kid were once the most wanted men in the West. They are thought to have fled South America, but what happened after that? Dr. Clyde Snow, the celebrated forensic anthropologist exhumes two bodies in Bolivia. But are they the legendary outlaws?

Dr. Clyde Snow earned his reputation tracking down missing people from their bones. Intrigued by the different stories he heard about Butch and Sundance, he teamed up with two outlaw historians and began an investigation which would eventually lead him to a remote Bolivian mining village, high in the Andes.

Did the outlaws die in a hail of Bolivian bullets, as the movie portrays, or did they live out their lives peacefully? Will the Sherlock Homes of Bones succeed in this case? He’s going to give it his best shot. After all, this is one of the last great mysteries of the American West.