Paul Henderson left school at the age of 15 and worked his way up from apprentice to become managing director of Britain's third-largest machine-tool manufacturer, Matrix Churchill. For almost 20 years he provided information, gathered on his many trips to Eastern Bloc countries, to a series of MI6 handlers. In September 1989, he showed Ministry of Defence officials, on a vast wall map, precisely where Saddam Hussein had built the factories that were turning out his missiles, artillery and munitions. He knew where they were because he had been inside many of them. In the Gulf War British and American aircraft used Henderson's information to help pinpoint targets for the bombs that destroyed the military power of Iraq. In return for his bravery and patriotism Henderson was betrayed by the British Government and forced to fight for his freedom from the dock at the Old Bailey. In November 1992 he won his case. "The Unlikely Spy" is both the autobiography of an ordinary man and a potentially explosive document filled with revelations about the secret workings of the intelligence services and the Government itself.