For decades, theories and controversies have swirled around the question of the true origins of the Dead Sea Scrolls -- one of the greatest archaeological finds in history. We'll go beyond enclosed glass displays to examine actual scroll fragments up close and explore the caves where they were found. Then, we'll examine a new clue to the identity of the scrolls' writers -- a 2,000-year-old cup inscribed with a secret text. Could analysis of this finding unravel the mystery?