You might have read numerous POW escape stories - both fiction and non-fiction - if you are a world war enthusiast like me. But I bet you won't have read anything about German POW escape attempt from mainland UK. Of course, in reality not a single German POW was able to escape from mainland UK (as this book states), but that doesn't mean that they wouldn't have attempted an escape. This is a good fictional account of something that might have happened in that regard.