Dr Michael Scott journeys to Athens to discover that from the very start the theatre was about more than just entertainment - it was a reaction to real events, it was a driving force in history and it was deeply connected to Athenian democracy. In fact, the story of theatre is the story of Athens.

'Mormon Lost Boys' Young men have been thrown out of their homes because of an edict allowing polygamist church elders to monopolize young girls. 'The Fat Farms of Mauritania' In the West African country of Mauritania, parents send their daughters to rural fattening camps. 'Mumbai Slumscraper' A visit to Mumbai, where slums sit below billion-dollar, single-family skyscrapers.

One of Britain's most celebrated artists, Turner showed exceptional artistic talent from an early age and entered the Royal Academy aged fourteen. His English landscapes made his name but there was a darker side to his paintings that was difficult for the critics to swallow, both in the increasingly informal use of paint and the subject matter that was critical of the romanticised vision of Britain in the late nineteenth century.

The story of Nikola Tesla, the great scientist, visionary, and inventor who gave the world alternating current electricity, as well as being the father of radio. The film tells the story of this man's astonishing genius, his visions and inventions. Tesla's own scientific and autobiographical writings, as well as archival photographs and re-enactments are used to tell the story. A native of Austro-Hungary, Tesla came to America in 1884. Working first with Edison, the two inventors fell out over Edison's insistence on using direct current. Tesla took his alternating current vision to Westinghouse. Tesla worked to unlock the secrets of energy and electricity. The film follows Tesla's exploits and eccentricities, which made him a darling of the press. Largely forgotten today in spite of the great debt the modern world owes him, the film pays tribute to this overlooked genius

In this episode, Helen seeks out the colours that turned planet Earth multicoloured. To investigate the essence of sunlight Helen travels to California to visit the largest solar telescope in the world. She discovers how the most vivid blue is formed from sulfur atoms deep within the Earth's crust and why the presence of red ochre is a key sign of life. In gold, she discovers why this most precious of metals shouldn't even exist on the surface of the planet and in white, Helen travels to one of the hottest places on Earth to explore the role salt and water played in shaping planet Earth.

This edition features a spectacular journey along the Andes, the world's longest mountain range, stretching from the equator almost to Antarctica. In this harsh and unforgiving landscape, wildlife such as bears, pumas, condors and flamingos fight for survival in the numbing cold, ferocious winds and thin air.