Take a fascinating theory, a celebrated deep sea explorer, and cutting-edge detection technology—then put them all to the test in the poisonous "dead zone" of the most mysterious sea in the world… the Black Sea. Join Dr. Robert Ballard, discoverer of the Titanic, on an odyssey of biblical proportions as he sets out to find the submerged truth about the Great Flood. Almost every major culture on Earth includes an ancient flood story. What if evidence of the Great Flood could be found?