David Jason's Secret Service: The Story of Britain's Rich Spy History

Sir David reveals the legendary characters, audacious missions and makeshift methods of spying's early days, and uncovers the real heroes and heroines who were pivotal to Allied victory in World War I.

Sir David searches out Britain's eccentric amateur inventors and backyard boffins, who played a key role in the defeat of Hitler and created the machinery of 21st-century surveillance.