Peace walls, segregated schools and old enemies living on the same street. Cara returns to Northern Ireland to see how, today, The Troubles are far from forgotten history. A victim of Stakeknife breaks his silence and, like so many others, he wants to know the truth about his father’s murder. As her investigation draws to a close, Cara examines the legacy of Britain’s terror spy network and asks, has justice been served – or is the state getting away with murder?

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A family forced to flee abroad. A young soldier killed by a car bomb. Two teenagers gunned down in a mobile shop. As Cara exposes the cold-bloodedness of both sides in the Troubles, she finds out the extent of the state's lethal spy network. Bereaved families hunt for justice, and the truth is shrouded in secrecy as killers walk the streets.

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IRA spycatcher Freddie Scappaticci has been outed as FRU agent Stakeknife – but he’s not going to disappear without a fight. The British state takes unprecedented measures to make sure their spy gets away with murder. Cara teams up with veteran reporter John Ware to reveal just how high up the cover-up goes. Their reporting leads to a key organisation that has so far remained in the shadows: MI5.

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Brian Nelson is finally in the dock for his campaign of murderous violence, but will he face justice? The question sends shivers through the British government, and the answer causes even more of a stir. But Brian is just the tip of the iceberg – there’s a new battle, shocking revelations, and a landmark apology to come. 

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Cara tracks down soldiers from the covert unit of the British army at the heart of her investigation. As these people who handled spies in the IRA and loyalist paramilitaries spill their secrets, it becomes clear that Agent 6137 and Scap are just the tip of the iceberg. Betrayal, sex, murder. Was it really all for the greater good?

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The IRA creates a new unit to root out informers – or touts – and kill them. A man known as Scap quickly rises to the top of this ‘Nutting Squad’ and builds up a fearsome reputation for cruelty. But he is hiding a dark secret – and the implications of the truth being exposed are enormous.

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Facing life in prison for murder, a key loyalist makes a surprising confession: he is Agent 6137. When he targeted people for the UDA to assassinate, he was also working for the British. The daughter of one of his victims hunts for the truth about his life as a spy – but as she and Cara dig deeper, they find documents are missing and proof is hard to pin down. 

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Top detectives race to untangle a web of lies behind the murders. But just as they’re about to arrest a key loyalist suspect, their secure office containing top-secret evidence goes up in flames. They hear whispers that a clandestine unit of the British army could be behind the sabotage. All to protect one man – a man Cara reveals is a vicious fighter with a shadowy past. 

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Three innocent Catholic men are shot dead in front of their families by a brutal Protestant paramilitary group hunting the IRA. Even in the dark days of the Troubles in Northern Ireland, the murders shock the nation. Then it emerges the gunmen aren’t working alone. Cara McGoogan is determined to find out who else is involved and how deep the collusion goes.

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A taxi driver is shot dead in front of his children. A high-security room goes up in flames. Then terrorists are unmasked as spies. And behind it all, a shadowy unit of the British Army.

Award-winning journalist Cara McGoogan investigates the biggest cover-up of the Northern Ireland Troubles and asks: is the British state getting away with murder?

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