A D-Day veteran reveals how marker buoys almost gave the Nazis notice of the Normandy Landings and women in Devon discuss the friendly 'invasion' of US soldiers. S1/Ep5
Harry explores British deception tactics including remote-controlled planes, secret petrol pipes and a fake army. Plus, unseen footage of the East End blitz. S1/Ep4
93-year-old 'Spitfire Girl' Mary Ellis takes to the skies in an iconic fighter plane and Harry joins the search for the wreckage of a rare Hurricane. S1/Ep3
Harry examines Hitler's plans to conquer Britain and investigates the clandestine army trained to disrupt any invasion. But how effective would a 'Bear Hug' be? S1/Ep2
Harry asks why Luftwaffe pilots were buried with military honours in the East End, and retraces a controversial trip to Nazi Germany by the British Legion. S1/Ep1