Synopsis

The fall of the Iron Curtain cast a long shadow across Europe, and within the hallowed halls of MI5, a growing unease took root. Intelligence suggested that British atomic research had been compromised. A network of Russian spies might be operating in London, and the agency turned to one of its most astute investigators: Foyle. He was tasked with uncovering the truth – whether a clandestine operation was underway in the heart of the city.