Berlin. May 1945. A city without institutions in a continent that has become a wasteland.

Thousands of former Nazis have been killed in Allied purges, many more incarcerated in the very concentration camps they themselves established.

But the British Prime Minister, Winston Churchill, has a problem. One of those former Nazis is actually a British spy, Edward Kayne, who has intercepted a top-secret document that Churchill insists is vital to settling the peace.

Martin Geller is selected to journey into the heart of darkness and extract Kayne, but a carrot is dangled before him. His daughter, Zaya, had been abducted two years before as part of the Lebensborn programme – the kidnapping of children deemed to be ripe for ‘Germanisation’. Zaya is now in the same camp.

Geller sets off on a two-pronged mission – to extract Kayne and rescue Zaya. But Geller will discover that far from settling the peace, the document that Kayne has intercepted threatens the opposite.