June Jenson is back, and she's in more trouble than ever.
Still adjusting to her family's recent exoneration from the Archeological world (they stole an artifact, caused a ruckus... it's a long story), June decides to embark on a press tour to repair the image of her employer (Oxford University) and her (somewhat crazy, but altogether loveable) Grandfather. When the opportunity arises to go to America to find a lost treasure belonging to the notorious outlaw Butch Cassidy, June know's it isn't something she can shy away from - even if she wasn't exactly the one who was assigned by Oxford to the task.
Along with the Professor, Dr. Cooke, and her emotionally-stilted boyfriend Griffin, June embarks on a treasure hunt in the wild mountains of Colorado. June hopes to make the discovery of a lifetime... that is, before anyone at Oxford realizes she's left the country.