Scientist and cinematographer Dr. Robert Ballard dives deep into the Mediterranean to explore the rich history preserved in sunken ships on the undersea floor. Preserved by unique underwater soil, the remains of thousand-year-old wrecked vessels offer clues to the history of the region, and Ballard and his team of archaeologists daringly seek them out to piece together mysteries from the past. With some dating as far back as the time of Christ, you'll be riveted as you explore the ""