Captain William Kidd, a Scottish sailor turned privateer, was executed for piracy and murder in 1701, leaving behind a legacy of mystery and a fortune that was never recovered. Centuries later, forensic geologist Scott Wolter investigates the possibility that Kidd's hidden treasure was not only real but also played a pivotal role in the rise of America's first millionaire, John Jacob Astor. Through a series of clues, including a cryptic set of numbers passed down by Kidd to his wife, Wolter explores the possibility that this legendary wealth was used to build the Astor family fortune, potentially linking one of history's most notorious pirates to one of America's most prominent dynasties.