2014 marks the 75th anniversary of the beginning of World War II. This new series takes us back to a time when ordinary people became extraordinary heroes, freedom fighters, spies and code-breakers, often in deadly battles with Nazi forces. Set in Poland, which was home to some of the war's worst atrocities, Heroes of War uncovers tales of heroism and sacrifice from a number of unsung heroes of World War II. Featuring interviews with the few remaining eyewitnesses, access to newly released documents, re-enactment and archive footage, it reveals the true and, until now, hidden stories of heroism during wartime.