Often reduced to Churchill, the Blitz, and D-Day, Britain’s WWII story hides a darker reality. This two-part documentary reveals how a nation fighting for democracy came to embrace the mass bombing of civilians. From 1940 to 1945, Britain shifted from victim to aggressor. Through the voices of strategists, airmen, and civilians—British and German—it explores a distant, dehumanized war where moral certainty gave way to ruthless tactics. Rare archives and firsthand accounts expose a grey zone of history—and raise a haunting question: how does a democracy justify systematic violence?