In early 1942 the Germans opened a top-security prisoner-of-war camp. Called Stalag Luft III, it soon contained some of the most inventive escapers ever known. They were led by Squadron Leader Roger Bushell who masterminded an attempt to smuggle hundreds of POWs down a tunnel built under the noses of their guards. The escape would come to be immortalised in the famous film The Great Escape, but in this book Guy Walters takes a fresh look at this remarkable event and asks what was the true story?