Mallinson Sadler Productions

From a long lost US base beneath the Arctic ice cap, to a sunken Soviet submarine, the Cold War's toxic legacy is both fascinating and terrifying.

Drain Alcatraz uses cutting edge visual effects to 'drain' the waters around the notorious island of Alcatraz. With the waters drained away the secrets of Alcatraz are revealed, including exactly why the island's infamous prison was so inescapable.

What lies beneath the ocean? World War Two left a great number of ships and submarines hidden beneath the waves. Now, as the oceans drain, each vessel reveals its secrets through new data-based 3D reconstructions. From the Arizona in Pearl Harbour’s shallows, whose destruction brought America into the war, to Nazi super ship the Bismarck and its mysterious end three miles down. From the flaming merchant ships secretly torpedoed by U-boats off tourist beaches of the USA, to the covert inventions of the Allies' costly D-Day beachhead, and lastly to the troopship Leopoldville sunk with the needless deaths of 400 soldiers. Drain The Ocean exposes the truth.

Explore the ruins of Port Royal, once a flourishing pirate city, known for extravagance, women and liquor. The city which went by the sobriquet "wickedest city on earth", lies in shambles deep below the waters of Jamaica's Kingston Harbor after a devastating tsunami struck it on June 7, 1692

25th April 1915 Australian Submarine AE2 enters the Sea of Marmara, Turkey while Anzacs storm the beachhead at Gallipoli. Now lying on the bottom of the sea a search team locates it and it's story is told.

From a steamboat in a cornfield to the true story behind Hurricane Katrina's floods, new discoveries reveal how the Mississippi river shaped America.