We see how the Germans they lived, fought and worshippped their gods. Intricate 3d animation shows how they built their settlements, buried their kings, vanquished their enemies.

In the fourth episode of the series, Clovis was the first Frankish king to acknowledge the Christian faith. This changed the direction of Europe's history.

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 the year 480 B.C., the Greeks and the Persians fight one of the most famous battles in history at a place called Thermopylae. Here, the mighty Persian war machine, which has conquered most of the known world, will attempt an expansion into Europe. The only thing standing in their way will be an army led by 300 Spartans, the greatest soldiers the world has ever known. They will fight to the very last man, and in doing so will protect the cradle of democracy during its infancy, and the battle will go down in history as the greatest military stand of all time.

Mark Oliver Everett, singer of the band EELS, on his quest to get to know his later father, quantum physicist Hugh Everett III, who invented the Many Worlds theory. The film follows Mark on his journey across America, where he meets old friends and colleagues of his father. Hugh died of a heart attack in his home in 1982, where his body was found by 19-year-old Mark. Even though they had lived in the same house, the two of them were alienated. Only by entering the paradoxical world of quantum mechanics can Mark hope to understand why he was such a stranger to his own father.

This programme focuses on the most famous Roman of all - Caesar. Charming, savage, power-crazed, opportunistic and brilliant, he overthrew a 500-year-old Republic and began the age of the emperors.