In late 1890s Wyoming, Butch Cassidy is the affable, clever and talkative leader of the outlaw Hole in the Wall Gang. His closest companion is the laconic dead-shot Sundance Kid. As the west rapidly becomes civilized, the law finally catches up to Butch, Sundance and their gang. Chased doggedly by a special posse, the two decide to make their way to South America in hopes of evading their pursuers once and for all.

In Bolivia, Butch Cassidy (now calling himself James Blackthorn) pines for one last sight of home, an adventure that aligns him with a young robber and makes the duo a target for gangs and lawmen alike.

The girlfriend of the Sundance Kid is on the run, with a price on her head, when she hears rumors that Sundance may still be alive.

Ready to quit their life of crime, the three "most-wanted" outlaws in the West---Butch Cassidy, Sundance Kid and Bill Carver ---perform their final job by robbing and stealing a train and fleeing across the border. In a South American town they begin their life of respectability by purchasing a ranch and depositing their stolen fortune in the local bank, and throwing a big fiesta to entertain the locals, including Colonel Aguilar and his beautiful daughter Rita.

The historical account of outlaws Butch Cassidy and the Sundance Kid, whose turn of the last century exploits made headlines, led them to be pursued by Pinkerton detectives hired by the railroads, and inspired a hit 1969 film.