The dramatic story of a betrayal that changed the course of World War II—the never-before-revealed role of the Cambridge Spies in the devastating Allied defeat at the Battle of Arnhem.

The end of World War II is in sight.

Following the overwhelming victory on D-Day, Churchill, Roosevelt, and Stalin all seek to shape the future to their own ends by winning the race to Berlin.

The British launch Operation Market Garden, the greatest airborne operation the world has ever seen. It is a bold roll of the dice that, if successful, will end the war in weeks. But behind the scenes spies are working their craft, the Allies’ plans are betrayed, the operation fails—and thousands of our soldiers die.

The Traitor of Arnhem tells the never-before-told story of this famed operation and of the spies working to cause the catastrophic defeat. One traitor is a terrifying giant of a man, a supposed hero of the resistance who sends hundreds of fellow freedom fighters to torture and death; the other is an aristocrat and an English gentleman, working from inside the heart of the Allied war effort in London. Both of them are working for the Russians.

Drawn from newly released archives and shedding fresh light on the spies responsible for its failure, The Traitor of Arnhem is the remarkable account of the battle that would transform the conclusion of the European campaign and the start of the Cold War.