Armed with a new secret weapon, Amies compiles a kill list to deal with Nazi collaborators, including the traitor taking... more

British fashion designer Hardy Amies applies for a second job as a spymaster as World War 2 begins. Before long, he's... more

David Cumming, writer, actor, composer and originator of Operation Mincemeat: The Musical, transformed one of WWII’s most surreal tales—a corpse... more

When Luigi Mangione allegedly gunned down UnitedHealthcare’s CEO, the media called it a senseless crime. But online, a different story... more

With 160,000 Allied troops about to invade Sicily, the Operation Mincemeat team hunt for signs that the Nazis fell for... more

Germany and Britain both want the same thing: to get Major Bill Martin’s briefcase into the hands of the Nazis.... more

The story of Operation Mincemeat. It’s 1943 and World War 2 hangs on a knife-edge. Everybody knows the obvious next... more

Jack Barsky was arguably one of the most successful and enduring of the "Illegals”. These were the Soviet and Russian... more

Time’s running out to arrest the illegals, but before the FBI can bust them it needs the okay from President... more

With the undercover Russian spies making moves to get closer to Hilary Clinton, Moscow sends a new illegal to America:... more

It's 1999 and a mole reveals that deep-cover Russian spies are lurking in American suburbia. The FBI finds itself walking... more

Krzysztof Kosior was thirty when he first felt ready to visit Auschwitz. But since childhood, he had heard stories of... more

Witold Pilecki gets dire news from the Polish resistance in Warsaw. After two years desperately trying to expose the horrors... more

Witold Pilecki scolds a new arrival for calling him by his real name. But then he realises: this new arrival... more

Polish soldier Witold Pilecki is heading to Auschwitz. By choice. His mission is to play prisoner so he can expose... more

Aimen Dean talks Raza Jaffrey through the highs and lows of his eight years as an undercover agent and why... more

A deadly plot threatens the New York Subway and Dean is on a mission to thwart it. But when his... more

Dean is working undercover, posing as a loyal jihadi in Afghanistan, while actually spying for British intelligence. He knows that... more

Aimen Dean is trapped. He wants out of al-Qaeda and Afghanistan, but no one gets to leave the jihadi training... more

It’s 1994 and 16-year-old Aimen Dean wants to die. He’s heading to war-torn Bosnia to join the Mujahideen and save... more

Amory Lumumba was born long after the 1961 assassination of his grandfather. Yet the impact continues to ripple through his... more

Each Christmas, a giant tree lights up London’s Trafalgar Square. Behind the custom: 007 author Ian Fleming and a secret... more

New Prime Minister Joseph Mobutu’s grip on power is shaky. It’s Patrice Lumumba who has the people’s support. So the... more

While Patrice Lumumba battles to control his country, MI6 officer Daphne Park and CIA officer Larry Devlin are secretly battling... more

Newly independent Congo is spiralling into disorder. Disorder the Communists could be quick to exploit. MI6 officer Daphne Park needs... more

When MI6 sends officer Daphne Park to help stop a communist takeover in Congo, it kickstarts one of the darkest... more

In a groundbreaking investigation into the poisoning of Sergei Skripal, journalism group Bellingcat exposed previously unknown details of the Salisbury... more

As hospital medics battle to save the first victims of the Salisbury poisonings, police hunt the perpetrators. And while they're... more

In a top-secret Russian laboratory, a terrifying chemical weapon called Novichok is about to be hauled out of storage, and... more

Sergei Skripal is easing into retirement with a side hustle as a MI6 agent, and enjoying the Spanish seaside. Meanwhile,... more

When the USSR falls apart, GRU officer Sergei Skripal finds himself adrift in the new Russia, having never asked for... more

Why did Fuchs take such a huge gamble by sharing US nuclear secrets with the Soviets? Was Oppenheimer's fellow physicist... more

MI5 is closing in on Klaus Fuchs. But they can't seem to catch him in the act of spying. There’s... more

Klaus Fuchs is sure his espionage has gone undetected. So when authorities unearth a similar spy ring in Canada’s nuclear... more

Fuchs’ plan to feed secrets to the Soviets is in jeopardy. The atomic bomb project is closely guarded. That means... more

It’s the 1940s. Robert Oppenheimer is creating plans for the first atomic bomb. And his colleague is stealing them. Klaus... more

Why was Carlin considered Thatcher's favourite spy? What difference did he really make? And how did he cope when he... more

With IRA hardliners losing ground and Sinn Féin on the up, Willie Carlin’s feeling confident about his spying. But loose... more

When Willie Carlin makes an alarming discovery in an IRA safe house, he must choose between preserving his cover or... more

Stuck with a wayward handler, MI5 agent Willie Carlin hunts for a way out, only to get sucked deeper into... more

When Willie Carlin quits the British Army to return to Northern Ireland during The Troubles, he gets an unusual job... more

Few spies have motives as hard to decipher as those of Oleg Penkovsky. Was he a hero, an egotist or... more

It’s 1962 and Oleg Penkovsky has gone to ground after spotting a KGB surveillance team tracking his MI6 contact Janet... more

Oleg Penkovsky is back in the USSR, ready to feed Soviet secrets to his new MI6 contact: a pram-pushing mother... more

After months of missed opportunities, the CIA and MI6 are about to meet Penkovsky. But with Soviet Premier Nikita Khrushchev... more

It’s 1960. The world hangs on the brink of nuclear war. But in Moscow, a man’s about to emerge from... more

Aimen Dean talks Raza Jaffrey through the highs and lows of his eight years as an undercover agent and why... more

Aimen Dean is now on a mission to thwart a deadly plot to release poison gas on the New York... more

Aimen Dean is now working undercover posing as a loyal jihadi in Afghanistan, while actually spying for the British intelligence... more

Aimen Dean is trapped. He wants out of al-Qaeda and Afghanistan, but no one gets to leave the jihadi training... more

It’s 1994 and 16-year-old Aimen Dean wants to die. He’s heading to war-torn Bosnia to join the Mujahideen and save... more

The endeavors of the women of the Special Operatives Executive were vital to many of Britain's successes during WW2. But... more

After months on the run Noor Inayat Khan's luck takes a turn for the worse. But she doesn't go down without... more

Britain’s Prosper spy network is falling apart in Northern France. Every day the Gestapo seems to arrest yet another agent... more

Noor Inayat Khan is back in France, eager to use her radio skills to help fight back against the Nazi... more

It’s June 1940 and the German forces are closing in on Paris. Noor Inayat Khan escapes to Britain just in... more

Why was the Cambridge Five scandal so embarrassing to MI5? And how significant was Oleg Lyalin's success in restoring faith... more

Operation Foot is now happening. And British government knows that its attempt to neutralise the KGB in London will be... more

There’s panic at MI5 headquarters. Oleg Lyalin, their man inside the KGB, has just been arrested for drunk driving putting... more

Oleg Lyalin is now compromised. To survive, he must now find a way to maintain the fictions of his multiple... more

Charlotte Philby interviews Andrew Lycett, the biographer of Ian Fleming, about the other real life spies that inspired his most... more

British intelligence is out to fool the Nazis into thinking the Allies invasion will start anywhere but Normandy. But to... more

After a bust-up with the FBI over Pearl Harbor, Duško Popov finds himself at a crossroads. Does he seek a... more

MI6 double agent Duško Popov is heading to America, armed with evidence of Japan’s keen interest in the US Pearl... more

It’s 1940 and Serbian playboy Duško Popov hopes to sit out World War Two in Belgrade. But when his best... more

These are stories you were never meant to hear. The invisible but vital work of the world’s intelligence services: secret... more