Flint parachutes into France to help uncover the mole betraying the Resistance to the Germans.; Follows Tommy and Harry on the first three days of the war, as they move from civvy street to a Barracks as the reservists are called up.; A mysterious Spitfire rescues Sam Fletcher twice when he's in difficulties during the Battle Of Britain.; Australian Private Dan "Digger" Donnelly arrives in North Africa, promptly breaks his leg and gets separated from his unit. Once recovered, he sets out to find them.