Thatcher and her capitalist dreamers' next big gamble was a radical shake-up of London’s financial sector. They called it Big Bang. Seemingly overnight, the stuffy old City of London was replaced by a fast-paced world of risk-takers, rule-breakers, and yuppies brandishing mobile phones the size of their head. It was a golden age of capitalism, where fortunes were made at lightning speed and the stakes were just as high.

Nick Leeson was a working-class kid from Watford who arrived at just the right time. By 1995 he was a superstar trader. He was a poster boy for Thatcher’s Britain. Poor kid gets rich. But then something happened that turned him from a hero to a criminal on the run.

Did the very thing that spurred on his success precipitate his downfall? And what did that mean for the Thatcherite revolution. This is a story of the boom and bust of the 80s.

David Dimbleby traces the history of an idea that spans his life. It started on a chicken farm in Sussex, gained traction in the shadows of post-war London and rose to heights of excess in the new champagne bars of the City. It's 2025 and this once radical idea now defines every aspect of life in Britain. An idea that transformed the economy, politics and, ultimately, society itself.

But how did it happen? Who are the little-known people behind it? What did they want? And - as Donald Trump threatens to overturn the global economic system - is the free market here to stay? Or are we entering a new era?

Presenter: David Dimbleby

A Samizdat Audio production for BBC Radio 4

A young banker sits in front of a book full of balance sheets. Boring work. But he has come to a realisation. And it’s a realisation that will, in a few short years, transform Britain. This banker - John Redwood - had realised that the best way to turn the country into a free market paradise was to sell all the big industries owned by the state to the people of Britain. To create a nation of shareholders. The only problem? No one wanted to listen to him.

This is the story of a radical experiment in free market capitalism. One that had never been tried before. And of one man with a vision and a set of spreadsheets. To remake the country and sell capitalism to the masses.

David Dimbleby traces the history of an idea that spans his life. It started on a chicken farm in Sussex, gained traction in the shadows of post-war London and rose to heights of excess in the new champagne bars of the City. It's 2025 and this once radical idea now defines every aspect of life in Britain. An idea that transformed the economy, politics and, ultimately, society itself.

But how did it happen? Who are the little-known people behind it? What did they want? And - as Donald Trump threatens to overturn the global economic system - is the free market here to stay? Or are we entering a new era?

Presenter: David Dimbleby

A Samizdat Audio production for BBC Radio 4

A man throws up in a taxi on his way to an interview. He is nervous because he is about to make an argument. It’s an argument that would change politics forever.

His name was Keith Joseph. And this would be the start of a radical journey - from conventional conservative politician to ideological warrior and guru for Margaret Thatcher. Joseph set out on a tour of the country. He had eggs thrown at him, Marxist flags waved in his face. He was spat at. Heckled. All because he was arguing for one thing - the free markets.

David Dimbleby traces the history of an idea that spans his life. It started on a chicken farm in Sussex, gained traction in the shadows of post-war London and rose to heights of excess in the new champagne bars of the City. It's 2025 and this once radical idea now defines every aspect of life in Britain. An idea that transformed the economy, politics and, ultimately, society itself.

But how did it happen? Who are the little-known people behind it? What did they want? And - as Donald Trump threatens to overturn the global economic system - is the free market here to stay? Or are we entering a new era?

Presenter: David Dimbleby

A Samizdat Audio production for BBC Radio 4

A fighter pilot watches his brother plunge to his death in the Second World War. Grief-stricken, he vows to fight until his dying day for the cause of freedom.

In this new narrative series, David Dimbleby traces the history of the hidden force that changed Britain - the free market revolution - and the invisible hands that shaped it.

It started on a chicken farm in Sussex, gained traction in the shadows of post-war London and rose to heights of excess in the new champagne bars of the City. It's 2025 and this once radical idea now defines every aspect of life in Britain. An idea that transformed the economy, politics and, ultimately, society itself. But how did it happen? Who are the little known people behind it? What did they want?

And - as Donald Trump threatens to overturn the global economic system - is the free market here to stay? Or are we entering a new era?

Presenter: David Dimbleby

A Samizdat Audio production for BBC Radio 4

David Dimbleby traces the history of a hidden force that changed Britain - the free market revolution - and the invisible hands that shaped it.

It started on a chicken farm in Sussex, gained traction in the shadows of post-war London and rose to heights of excess in the new champagne bars of the City. It's 2025 and this once radical idea now defines every aspect of life in Britain. An idea that transformed the economy, politics and, ultimately, society itself.

But how did it happen? Who are the little-known people behind it? What did they want? And - as Donald Trump threatens to overturn the global economic system - is the free market here to stay? Or are we entering a new era?

Helena Bonham Carter shines a light on extraordinary stories from World War Two. Join her for tales of deception, resistance and courage in History's Secret Heroes, Series 3.

Nicola Coughlan shines a light on extraordinary young people from across history. Join her for 12 stories of rebellion, risk and the radical power of youth.

The man tasked with finding and killing alleged IRA informers was an informer all along. Reporter Mark Horgan traces the story of the secret British Army Agent known as Stakeknife.

Alex trawls through Lord Lucan’s belongings from his speedily abandoned flat.

She finds incriminating books where he’s torn out pages on how to kill your wife, and is taken aback by photos that make her reconsider the story.

She draws together what makes this a compelling crime, and asks what would give it the perfect ending.

And in a remarkable interview with a former Met Police Detective, she discovers that we could perhaps get an answer to one of the two mysteries tomorrow.

Presenter: Alex von Tunzelmann

Our interest in Lord Lucan could have petered out after the inquest. But people start to spot him all over the world. Could he really have escaped the UK?

Alex von Tunzelmann explores what role this idea plays in our fixation with the Lucan case.

She hears how the media kept the story going, inventing sightings for copy and jollies abroad. People admit to elaborate hoaxes and blatantly fabricating stories.

But should we dismiss the idea? Alex finds one story from a closed police file that completely bowls her over.

Producer: Sarah Bowen