The extraordinary untold story of the heroism and sacrifice of the NYPD’s elite rescue squad - the Emergency Service Unit - on 9/11.

Gabon's Loango National Park is home to a group of western lowland gorillas who have become accustomed to biologists who have studied them for almost twenty years. This documentary presents an intimate look at the silverback Kamaya and his family and features a newborn baby gorilla, brave researchers, forest elephants, buffalos and the last remaining wild coastline in the African tropics.

A look at the life of Tintin creator Georges Remi, known by the pen name Hergé, whose tales of reporter Tintin and his canine sidekick Snowy have stood the test of time, despite controversy over his early work.

An inspirational documentary about survival and rescue, which tells the stories of people who emerged alive against all the odds from the Kings Cross train bombing

Rocks, dunes, sand and dust - large areas of Namibia in southwest Africa are characterized by deserts. Riverbeds full of sand meander through these inhospitable regions. Some of these only have water once every few years when enough rain has fallen in the mountains and the water rushes to the coast - but most of the time the river courses have dried up. And yet they are crucial for the survival of many living beings.

An old, battle-scarred hippo bull – once a king among the hippos in Zambia’s Luangwa Valley – has an incredible story to tell. It’s a story normally hidden from human eyes and almost always misunderstood, because a hippo’s secret life happens beneath the water and under cover of darkness. Follow the life of the “Hippo King,” and discover the true character of one of Earth’s largest land mammals.

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.

Europe has experienced catastrophic earthquakes – even though the 'old continent' is not the most notorious region on Earth for strong quakes, the danger from below is very real.

Survivors tell how 12 fire-fighters, a police officer and an office worker survived inside the North Tower of the World Trade Center as it collapsed on top of them