It's known as the Alamo of the ancient world, the story of a band of Jewish rebels and their final stand against the Roman Army. The siege of Masada, recorded nearly 2,000 years ago by Jewish military leader Flavius Josephus, is more than a tale of resistance against impossible odds. It's part of the founding narrative of Israel. But how much of it is true? We take a look at the events that inspired the CBS television miniseries "The Dovekeepers" and go to the site of the mountain fortress itself, uncovering new truths about this epic conflict.