The son of a Bomber Command pilot whose plane exploded in a fireball in Nazi Germany has revealed his father's incredible story of survival during the war. Gerald Sherwood, 80, from St Austell, Cornwall, told how Wing Commander John 'Flap' Sherwood took part in a daring mission before being captured in his new book. He also highlighted how the RAF hero was chucked in Stalag Luft III - the Luftwaffe-run prisoner of war camp made famous by the Great Escape.