Katty Kay in Washington and Christian Fraser in London return to report on the events that are shaping the world.

Michael Portillo follows a route recommended in Bradshaw's guide, journeying from the heart of France to the Mediterranean coast. Show more

Lucy looks at the beginning of the Romanovs' reign, from Mikhail to Peter the Great, the tsar determined to modernise Russia at the end of the 17th century. Show more

Documentary in which Stephen Smith traces the revolutionary beginnings of Dr Zhivago, one of the best-known love stories of the 20th century, written by Boris Pasternak. Show more

History series. Astonishing new evidence has now come to light linking the British Secret Service with the murder of Grigori Rasputin in Russia in 1916. Show more

A Storyville documentary. Cold War spy George Blake betrayed his colleagues to the KGB, then escaped from Wormwood Scrubs five years later and fled to the Soviet Union. Show more

Documentary featuring the fascinating lives of Britain's beautiful butterflies filmed in exquisite detail, and also a celebration of their enduring appeal to the British people. Show more

Andrew Graham-Dixon tells the story of Paul Nash, who was scarred by the First World War and the ghosts of his experiences haunted his future work. Show more

Documentary in which Stephen Smith traces the revolutionary beginnings of Dr Zhivago, one of the best-known love stories of the 20th century, written by Boris Pasternak. Show more