Wilhelm Necker boards a train headed to Paris from Berlin believing that by departing he can escape the all too heavy burden of the past. As a Colonel in Nazi Germany's Abwehr, Necker's debt to history is great: that he survived both the liquidation of the espionage agency and the Nazi terror is no small testament to his intelligence and his luck. Boarding the train amidst the October fog and billowing exhaust his departure promises to him a brighter future under foreign suns. The past, unfortunately, refuses to be disposed and on the second day he meets a man carrying the same debt as he and a warning that they're being followed; that, far from escaping, they have fallen into the trap of a service legend in the Abwehr responsible for uncovering and destroying the lives of many a spy, a person known as the Spybreaker.