Attempting to rebuild her shattered life in the South of France, former MI6 operative Kate Henderson receives an unexpected and most unwelcome visit from an old adversary: the UK prime minister. He has an extraordinary story to tell - and he needs her help. A Russian agent has come forward with news that the PM has been the victim of the greatest misinformation play in the history of MI6. It's run out of a special KGB unit that exists for one purpose alone: to process the intelligence from 'Agent Dante', a mole right at the heart of MI6 in London.

Oslo, 2018. Former long-distance runner Sonja Nordstrøm never shows at the launch of her controversial autobiography, Always Number One. When celebrity blogger Emma Ramm visits Nordstrøm’s home later that day, she finds the door unlocked and signs of a struggle inside. A bib with the number one has been pinned to the TV. Police officer Alexander Blix is appointed to head up the missing-persons investigation, but he still bears the emotional scars of a hostage situation 19 years earlier, when he killed the father of a five-year-old girl.

Sweden, 1942 - two old friends meet. They are cousins. One is Prince George, Duke of Kent, brother of the king of England. The other is Prince Philipp von Hesse, a committed Nazi and close friend of Adolf Hitler. Days later, the Prince George is killed in a plane crash in the north of Scotland. The official story is that it was an accident - but not everyone is convinced. There is even a suggestion that the duke's plane was sabotaged, but with no evidence, Cambridge spy Tom Wilde is sent north to discover the truth.... 

Geneva, 2012. When a Russian intelligence officer approaches MI5 with vital information about the imminent cyber-sabotage of an Anglo-American Defence programme, he refuses to talk to anyone but Liz Carlyle. But who is he, and what is his connection to the British agent? At a tracking station in Nevada, US Navy officers watch in horror as one of their unmanned drones plummets out of the sky. Is this a Russian plot to disable the West’s defences? Or is the threat coming from elsewhere?

As Germany goes to war, the Nazis tighten their terrifying grip. Paranoia in the capital is intensified by a rigidly enforced blackout that plunges the city into oppressive darkness every night, as the bleak winter sun sets. When a young woman is found brutally murdered, criminal Inspector Horst Schenke is under immense pressure to solve the case, swiftly. Treated with suspicion by his superiors for his failure to join the Nazi Party, Schenke walks a perilous line - for disloyalty is a death sentence.

Amanda and Clay head to a remote corner of Long Island expecting a holiday: a quiet reprieve from life in New York City, quality time with their teenage son and daughter and a taste of the good life in the luxurious home they've rented for the week. But with a late-night knock on the door, the spell is broken. Ruth and G. H., an older couple who claim to own the home, have arrived there in a panic. These strangers say that a sudden power outage has swept the city, and - with nowhere else to turn - they have come to the country in search of shelter. 

On a cold winter's morning, the body of a young boy is discovered in Epping Forest. The body is pristine and peaceful, his head resting gently on a pillow, an angel pendant clenched in his small fist. It is a murder as carefully planned as it is brutal, and there's one person DI Bishop needs back on his team to help solve such a calculated crime. Holly Wakefield, clinical psychologist for the Met Police, is better than anyone Bishop knows at getting inside the brains of psychopaths.

It is 1628, Charles I is on the throne, and the British Crown is finally taking control of Ulster. Returning to his rooms one night, Alexander Seaton is shocked to find a stranger standing there - a man who could be his double. His name is Sean O'Neill, and he carries a plea for help from Maeve O'Neill, forbidding matriarch of Alexander's mother's family in Ireland. All those who bear their blood have been placed under a curse and only Alexander, whose heritage has been kept a secret, is immune.

Berlin, 1929. Detective Inspector Rath was a successful career officer in the Cologne Homicide Division before a shooting incident in which he inadvertently killed a man. He has been transferred to the vice squad in Berlin, a job he detests even though he finds a new friend in his boss, Chief Inspector Wolter. There is seething unrest in the city, and the Commissioner of Police has ordered the vice squad to ruthlessly enforce the ban on May Day demonstrations.

Stuck in a dead-end job, broken-hearted, broke and estranged from her best friend, Violet's life is nothing like she thought it would be. She wants more - better friends, better sex, a better job - and she wants it now. So, when Lottie - who looks like the woman Violet wants to be when she grows up - offers Violet the chance to join her exciting start-up, she bites. Only it soon becomes clear that Lottie and her husband, Simon, are not only inviting Violet into their company, they are also inviting her into their lives.