In April 1912, after colliding with an iceberg, the cruise ship RMS Titanic sank into the North Atlantic Ocean, in one of the most notorious disasters in world history. A new scientific expedition is about to expire one of the most distant & dangerous archaeological sites on Earth. Located four kilometres below the surface of the Atlantic Ocean, new advances in marine technology are about to shed light on one of the most alluring wrecks in our history. This special one-hour programme documents an unprecedented August 1996 research & recovery expedition, during which a section of the Titanic's hull is raised, briefly, before returning to the ocean floor.