Drain the Oceans - 2 ª Season

Using the latest sonar technology, an expedition to map sunken Allied vessels off the Normandy Coast reveals stunning images from beneath the waves. There are over 100 shipwrecks in the English Channel of the landing craft and ships that took part in the greatest amphibious invasion fleet ever assembled.

The latest sonar technology reveals shipwrecks as never seen before. As water drains away, a secret beneath Manhattan's skyline, an earth-shattering feat of engineering, a record-breaking icon and a casualty of World War I stealth warfare are revealed. Examining these hidden giants can explain New York City's meteoric rise to a bustling world metropolis.

Using the latest sonar technology, hundreds of shipwrecks around the British Isles are uncovered as victims of World War II's German U-Boats, one of the world's first stealth weapons. Draining the oceans sheds light on this historical event as the secret technology deployed by Germany to sink ships and nearly bring the Allies to their knees is uncovered.

Buried Secrets of the Gold Rush drains the streets of San Francisco, the Sacramento River and the icy wastes of the Klondike in northern Canada to tell the true story of 19th century gold mania. In the race to be first to the gold fields, hundreds of thousands of people from across the world headed west despite the risks.

The land battles of the American Civil War are well known, but it's the war on the seas that shaped the outcome of the war. Maritime archaeologists and historians go in search of Civil War secrets, hidden deep underwater. Scientific data combines with computer graphics to drain the oceans to investigate the lost wrecks of the war.