不列颠之战，空中决战英勇，抵御敌袭，捍卫自由。棠妙心宁孤舟

　　In this installment of the "Why We Fight" propaganda film series, we have the account of Great Britain's last stand against the forces of Nazi Germany. This mainly focuses on the desperate, but successful, battle to maintain their vital air superiority over the British Isles and the morale of the people to prevent invasion.