In the last episode, Iain discovers the remarkable impact of just one plant: grass. On the savannah of South Africa he sees how grass unleashed a firestorm to fight its greatest enemy, the forests. He shows how cutting your finger on a blade of grass shows us how it transformed life in the oceans. In Senegal, he meets the cleverest chimps in the world. And, in the ruins of the oldest temple on Earth, he tells the extraordinary story of how grass triggered human civilisation.

Professor Brian Cox examines how it was that in a universe made of stars, rocks and endless space, a conscious civilisation was born. His latest adventure takes him from a submerged space station in Star City on the outskirts of Moscow, to Ethiopia, high above in the Great Rift Valley, where he encounters the geladas, mankind's distant ancestors. Despite once being Africa's most successful primate, a species who at one time roamed across the entire continent, these days they are found in one just place in the remote Ethiopian Highlands. Cox investigates why these ancestors retreated, yet modern mankind has expanded across the planet.

Embark on an astounding journey across 100,000 light-years to witness key moments in the history of the Milky Way. Using cutting-edge science, National Geographic constructs a 3-D state-of-the-art CGI model of our galaxy. We'll peer into the heart of the Milky Way on the hunt for super-massive black holes, watch how stars are born and die, fly out and above the plane of our galaxy to understand its true shape and scour its dusty spiral arms for the possibility of life

The film explores the life and the mystery surrounding the death of American actress and cultural icon Marilyn Monroe through archival footage and previously unheard interviews with her inner circle. The filmmaker Anthony Summers spent three years collecting 650 tapes recorded with people who either knew Monroe in her lifetime or had knowledge concerning her death.

Thought-provoking documentary on war propaganda: how governments manipulate the facts and how most media let them get away with it. WWI, Vietnam War, post-2001 Afghanistan, post-2003 Iraq, Palestine: a historical account of PR, embedded journalism, lies and cover-ups, but also of courageous journalists who disclose the truth.

Well-known fans celebrate Stevie Wonder and his music by selecting some of his best-loved songs. Contributors include actor Martin Freeman, singers Alexander O'Neal, James Morrison, Beverley Knight and Corinne Bailey Rae, Gillian Gilbert and Stephen Morris, DJs Ana Matronic, Trevor Nelson and Norman Jay, journalist Sian Pattenden and presenter Emma Dabiri.
Stevie Wonder is one of the dominant figures in American music, a multi-faceted genius whose music has permeated popular culture, and he is not short of celebrity fans. His musical achievements are lauded in this anthology of his greatest hits.