Drain the Oceans: Season 4, Episode 10

4 - 10: Sea of Secrets

A sea of secrets, myth, legends and great empires, ships have sailed the Black Sea for millennia. Its deepest waters is devoid of life, preserving shipwrecks that provide a window into its rich history. Draining the Black Sea unlocks secrets of an ancient ghost of the deep; how a naval fleet was pulverized in just 30 minutes; and will also reveal the final resting place of Hitler's lost U-boat.