It's World War I and German submarine technology terrorizes the British Navy. Fortunately, Captain Gordon Campbell is anything but traditional. He's at the helm of the first 'Q-boats' - heavily armed sub-busters ingeniously disguised as civilian ships. Vanessa Kirby sets sail with Captain Campbell on a secretive mission to take back the oceans. Could you stare down a torpedo?

It's 1989, and the US has invaded Panama. The country's corrupt leader, General Manuel Noriega, goes into hiding. Martha Duncan of the Defense Intelligence Agency is tasked with tracking him down - and she'll do whatever it takes to bring him into the open. Vanessa Kirby joins the hunt for Panama's most wanted. Could you catch a dictator?

Uruzgan Province, Southern Afghanistan. An Army convoy rumbles in on the dangerous highway from Kandahar, bringing vital supplies to American troops. This is facilitated by Matiullah Khan, a local warlord with connections in the Afghan government. When two US soldiers are assassinated by an Afghan ally, Naval intelligence officer Matt Cricchio suspects that Khan might be behind the attack. Vanessa Kirby joins Matt on a mission to bring him down.

Debilitating neurological symptoms have affected US officials worldwide. Former CIA officer Marc Polymeropoulos has been suffering since 2017 - he joins Russia expert and former CIA Station Chief John Sipher, and Dr. James Giordano to analyze Havana Syndrome.

Who was Britain's Ace of Spies? Nobody really knows but the name he used was Sidney Reilly - and nobody did it better in the early 20th century. Reilly reckoned with oil barons, his personal pride, and the rise of Communism during his decades on the edge.

Undercover ATF Agent Jay Dobyns was shot during his first week of work. He went on to spend 27 years in the field. That should tell you something about a man who risked his personal health and happiness to infiltrate one of America's toughest biker gangs, the Hells Angels. Jay had to prove himself worthy of membership - and the price of admission was murder. Could YOU earn your patch?

When health issues ended Ulrich Larsen's career in the kitchen, the Danish chef embarked on an altogether more dangerous livelihood - spying on North Korea. After gaining the trust of the Korean Friendship Association in Denmark, he was sent to the isolated dictatorship as an envoy, where he gathered evidence of sanction-busting deals in arms and narcotics. Could YOU become the Mole?

During the 1980s, a rash of hostage situations in the Middle East threatened American lives. In response, President Ronald Reagan authorized legislation that empowered the FBI to hunt the hostage takers down - any time, any place. Former Assistant Director Oliver 'Buck' Revell led the first operation of this kind - a daring plot to capture a Lebanese hijacker off the coast of Cyprus. Vanessa Kirby joins Buck for a make-or-break mission in the Med. Could YOU make history?

In the desert of Southern Afghanistan, CIA case officer Douglas Laux is on the hunt. He's traced a number of deadly IED attacks to a shadowy figure with ties to the Taliban. Now, his mission is to bring him down before more US personnel are killed. To do so, he'll have to push himself - and his assets - to the limit. How long could you take the heat?

Jeff Miller and Nick Brockhausen are two ex-Green Berets who share a brotherhood forged in battle. Their philosophy? Where there's war, there's money to be made. And if you can do a little good at the same time, all the better. In the 1990s, Jeff and Nick decided to open a commando training school for Bosnian forces in the besieged capital of Sarajevo. But first, they needed funding. Vanessa Kirby follows them on a gonzo adventure replete with political intrigue and deadly near-misses in the heat of war. Could YOU make a difference - and a fortune too?

Writer and researcher Julia Ebner makes a living out of infiltrating extremist groups. In the divided political landscape of the 21st century, some of those groups are making a play for the mainstream. Enter Generation Identity - a European far-right organisation putting a millennial gloss on old and dangerous ideas. Vanessa Kirby follows Julia as she goes undercover with the Nazi Hipsters - Nipsters, for short. Could YOU blend in?

The tools in a spy's arsenal are more varied than you might think. But they all come under one name: Tradecraft. In our fourth round of insights from the world of espionage, Vanessa Kirby meets brave investigators, wily whistleblowers and whip-smart spycatchers in the ultimate digest of the series so far. Could YOU master the craft?

The tools in a spy's arsenal are more varied than you might think. But they all come under one name: Tradecraft. In our third round of insights from the world of espionage, Vanessa Kirby meets daring undercovers, sweet-talking case officers and spies who shaped history in the ultimate digest of the series so far. Could YOU master the craft?

As a young Soviet journalist, Emil Draitser stumbled on a story that changed his life. He was summoned by Dmitri Bystrolyotov to hear the deep secret that he was a ‘Stasi Romeo’ spying on Germany for Moscow, taking advantage of vulnerable women to steal state secrets. It was a fascinating tale, but it could also land Draitser in prison.

Sue Dobson was a white woman who wanted to spy for the African National Congress - making her a minority within a minority in apartheid-era South Africa. Dobson spent seven months training in the USSR to learn her tradecraft. Now she wasn’t just a traitor, she was a turncoat with the training to kill.

Today, veteran CIA operative Doug Patteson is an expert in his field. But as a rookie Case Officer in South-East Asia, he still had a lot to learn. When the Agency put him in an awkward position, Doug was forced to find the middle-ground between his personal code and the life he chose. Could YOU always put the job first?

It's 1999, and DoD intelligence officer Bob Gourley is at the vanguard of the US Government's defense against cyber-espionage. He's joined a task force charged with uncovering the shadowy hackers who have been siphoning America's scientific secrets for three years. If he wants answers, Bob needs to navigate cutting-edge tech, inter-agency backbiting, and the machinations of an old enemy. Could you stop a hacker in their tracks?

Spy. Counterspy. Mercenary. Informant. Ricardo 'Monkey' Morales was all these things and more. Rising from humble beginnings in Cuba, he served within various intelligence agencies before becoming notorious in the criminal underworld of 1980s Miami. But when the FBI came knocking, he mounted a daring wire-tap operation against the city's powerful drug lords - Operation Tick Talks. Which side would YOU choose?

Shawnee Delaney was a key part of the US team hunting Osama bin Laden in the wake of 9/11. One of her contacts was a Mullah with close ties to al-Qaeda but how could she win his trust? There was a language barrier and the Mullah refused to accept money for intelligence. This was shaping up to be Shawnee’s most challenging assignment yet.

When it comes to cyber espionage, white-hat hacker Matt Devost is someone you want on your side. When a corporate client reported extortionate emails from an unknown aggressor, Matt was determined to unmask them. To do so, he'd need to test the limits of his considerable skills and step out from behind the keyboard. Could you become a hacker for hire?