Slough House

At Slough House - MI5’s London depository for demoted spies - Brexit has taken a toll. The “slow horses” have been pushed further into the cold, Slough House has been erased from official records, and its members are dying in unusual circumstances, at an unusual clip. No wonder Jackson Lamb’s crew is feeling paranoid. But are they actually targets? With a new populist movement taking hold of London’s streets and the old order ensuring that everything’s for sale to the highest bidder, the world’s a dangerous place for those deemed surplus.

A year after a calamitous blunder by the Russian secret service left a British citizen dead from novichok poisoning, Diana Taverner is on the warpath. What seems a gutless response from the government has pushed the Service's First Desk into mounting her own counter-offensive—but she's had to make a deal with the devil first. And given that the devil in question is arch-manipulator Peter Judd, she could be about to lose control of everything she's fought for.

In MI5 a scandal is brewing and there are bad actors everywhere. A key member of a Downing Street think-tank has disappeared without a trace. Claude Whelan, one-time First Desk of MI5's Regent's Park, is tasked with tracking her down. But the trail leads straight back to Regent's Park HQ itself, with its chief, Diana Taverner, as prime suspect. Meanwhile her Russian counterpart has unexpectedly shown up in London but has slipped under MI5's radar.

In London’s MI5 headquarters a scandal is brewing that could disgrace the entire intelligence community. The Downing Street superforecaster—a specialist who advises the Prime Minister’s office on how policy is likely to be received by the electorate—has disappeared without a trace. Claude Whelan, who was once head of MI5, has been tasked with tracking her down. But the trail leads him straight back to Regent’s Park itself, with First Desk Diana Taverner as chief suspect. Has Taverner overplayed her hand at last?

Old spies grow ridiculous, River. Old spies aren't much better than clowns. Or so David Cartwright used to say, but he forgot to add they can be dangerous too, especially if they've fallen on hard times - as Diana Taverner learns when the past lands on her desk. An operation carried out during the height of the Troubles laid bare the ugly side of state security, and those involved are threatening to expose details. But every threat hides an opportunity, and the would-be blackmailer is soon being used as Taverner's solution to a much newer problem.