The great nephew of famed outlaw Butch Cassidy sets out to redeem the family name and discover his distant uncle's true fate in this Wild West adventure for the entire family. Legend has it that Cassidy died during a late night gunfight in Bolivia, but some historians remain convinced that the elusive outlaw eventually managed to make his way back to the United States - where he was rumored to have lived well into old age. When inquisitive teen Roy Parker discovers an antique belt buckle that once belonged to his notorious uncle, he makes it his mission to uncover the truth about his Great Uncle Leroy and finally lay the legend to rest. But dispelling old rumors isn't Roy's only motivation, because Great Uncle Leroy was said to have hidden a rather substantial buried treasure before his death as well. Now, as Roy, his best friend, the girl of his dreams, and his arch nemesis set out to solve the greatest mystery of the Old West, they quickly find themselves forced to outrun a dastardly varmint who is intent on claiming the treasure as his own.