Ant colonies are one of the wonders of nature - complex, organised and mysterious. This programme reveals the secret, underground world of the ant colony in a way that's never been seen before. At its heart is a massive, full-scale ant nest, specially designed and built to allow cameras to see its inner workings. The nest is a new home for a million-strong colony of leafcutter ants from Trinidad. For a month, entomologist Dr George McGavin and leafcutter expert Professor Adam Hart capture every aspect of the life of the colony, using time-lapse cameras, microscopes, microphones and radio tracking technology.

It begins by examining the shift in the language and sound of music from the melodies and harmonies of giants such as Mozart, Haydn and Brahms into the fragmented, abstract, discordant sound of the most radical composers of the new century - Schoenberg, Webern, Stravinsky and beyond. It examines how this new music was a response to the huge upheaval in the world at the start of the 20th century, with its developments in technology, science, modern art and the tumult of the First World War. Featuring performances of some of the key works of the period, performed by the London Sinfonietta, members of the Aurora Orchestra and composer and pianist Timothy Andres, the story of this episode in music history is brought to life through the contributions of the biggest names in modern classical music, among them Steve Reich, John Adams, Michael Tilson Thomas, Pierre Boulez, George Benjamin and Alex Ross, music critic of the New Yorker.

Adam Rutherford meets a new creature created by American scientists, the spider-goat. It is part goat, part spider, and its milk can be used to create artificial spider's web. It is part of a new field of research, synthetic biology, with a radical aim: to break down nature into spare parts so that we can rebuild it however we please. This technology is already being used to make bio-diesel to power cars. Other researchers are looking at how we might, one day, control human emotions by sending 'biological machines' into our brains.

Dr Adam Rutherford tells the extraordinary story of the scientific quest to discover the secrets of the cell and of life itself. Every living thing is made of cells, microscopic building blocks of almost unimaginable power and complexity. The first part explores how centuries of scientific and religious dogma were overturned by the earliest discoveries of the existence of cells, and how scientists came to realize that there was, literally, more to life than meets the eye.

BC's illegal marijuana trade industry has evolved into a business giant, dubbed by some involved as 'The Union', Commanding upwards of $7 billion Canadian annually. With up to 85% of 'BC Bud' being exported to the United States, the trade has become an international issue. Follow filmmakers Adam Scorgie and Brett Harvey as they demystifies the underground market and brings to light how an industry can function while remaining illegal. Through growers, police officers, criminologists, economists, doctors, politicians and pop culture icons, Scorgie examines the cause and effect nature of the business - an industry that may be profiting more by being illegal.

And epic film by Adam Curtis that explains why the big stories that politicians tell us have become so simplified that we can’t really see the world any longer. The narrative goes all over the world, America, Britain, Russia and Saudi Arabia, but the country at the heart of it is Afghanistan. Because Afghanistan is the place that has confronted our politicians with the terrible truth, that they cannot understand what is going on any longer". The coumentary reveals the forces that over the past thirty years rose up and undermined the confidence of politics to understand the world. And it shows the strange, dark role that Saudi Arabia has played in this. But Bitter Lake is also experimental. Curtis has taken the unedited rushes of everything that the BBC has ever shot in Afghanistan - and used them in new and radical ways. He has tried to build a different and more emotional way of depicting what really happened in Afghanistan. A counterpoint to the thin, narrow and increasingly destructive stories told by those in power today.