As air gunner Sergeant Jack Newton made his first bombing raid over Germany in 1941, his Wellington was hit by flak and the skipper was forced to make an emergency landing on a German-occupied Belgian airfield. Finding himself deep in enemy territory, Newton began an extraordinary 1,000-mile trek across Belgium and France, all the while barely a step ahead of the Nazis who were determined to catch him. Newton owed his life to the brave 23-year-old...