Sunset over the plains of Kenya's Maasai Mara, one of Africa's most protected wild spaces. And home to the fastest land animal on Earth, the cheetah. These agile cats have always been thought of as daylight hunters. They target prey from more than a kilometre away and chase it down at over 100 kilometres an hour. In one of these plains, two cheetah brothers attempt a high-speed night hunt with a gang of powerful hyenas on their trail.

Just 92 elements made up the world, but the belief that were only four - earth, fire, air and water - persisted until the 19th Century. Professor Al-Khalili retraces the footsteps of the alchemists who first began to question the notion of the elements in their search for the secret of everlasting life.He reveals the red herrings and rivalries which dogged scientific progress, and explores how new approaches to splitting matter brought us both remarkable elements and the new science of chemistry.

In part two, Professor Al-Khalili looks at the 19th century chemists who struggled to impose an order on the apparently random world of the elements. From working out how many there were to discovering their unique relationships with each other, the early scientists' bid to decode the hidden order of the elements was driven by false starts and bitter disputes. But ultimately the quest would lead to one of chemistry's most beautiful intellectual creations - the periodic table.

In the final part, Professor Al-Khalili uncovers tales of success and heartache in the story of chemists' battle to control and combine the elements, and build our modern world. He reveals the dramatic breakthroughs which harnessed their might to release almost unimaginable power, and he journeys to the centre of modern day alchemy, where scientists are attempting to command the extreme forces of nature and create brand new elements.

A catastrophe still reverberating today with Chernobyl on the front line of war. Formerly secret KGB files reveal the astonishing truth about the 1986 explosion of the Chernobyl nuclear reactor in Ukraine, with leading experts and eyewitness accounts.
Newly declassified evidence from KGB archives reveals that the KGB had concerns about the safety of the Chernobyl nuclear plant even as it was being built. The film includes first-hand accounts from survivors, including Oleksiy Ananenko, who braved radioactive waters to prevent a second explosion, and Maryna Sivets, whose unborn child's life was put at risk.

Foo Fighters commemorate their 20th anniversary by documenting the eight-city recording odyssey that produced their latest, and eighth, studio album. Foo Fighters founder Dave Grohl directs the series, which taps into the musical heritage and cultural fabric of eight cities: Chicago, Austin, Nashville, Los Angeles, Seattle, New Orleans, Washington D.C. and New York. The band based themselves at a legendary recording studio integral to the unique history and character of each location. One song was recorded in each city, and every track features local legends. Even the lyrics were developed in an experimental, unprecedented way: Grohl held off on writing them until the last day of each session, letting himself be inspired by the experiences, interviews and personalities that became part of the process. Foo Fighters Sonic Highways is, in Grohl’s words, “a love letter to the history of American music.” Each episode delves into the identity of each city -- showing how each region shaped these musicians in their formative years and, in turn, how they impacted the cultural fabric of their hometowns. Every artist who appears in the show, regardless of genre or locale, started as an average kid with universal dreams of making music and making it big. Grohl made his feature film directorial debut in 2013 with the universally acclaimed Grammy-winning Sound City, a celebration of the human element in the creation and recording of music. Foo Fighters have won 11 Grammy Awards, including four for Best Rock Album, more than any other band. Premiering on the eve of Foo Fighters’ 20th anniversary, Foo Fighters Sonic Highways aims to “give back” to the next generation of young musicians. As guitarist and singer Buddy Guy, an interviewee from the Chicago blues scene, explains, “Everything comes from what’s come before.”
In the first episode, Dave Grohl and friends discuss the rise of the famous Chicago music scene from the roots blues of Muddy Waters and Buddy Guy to the Rock and roll of Cheap Trick.