The War As We Know It opens with a somber reflection on World War II, emphasizing its unprecedented documentation through sound. The episode sets the stage by recounting the events leading up to the war, particularly focusing on the Munich Agreement and the fate of Czechoslovakia, which was left vulnerable and ultimately consumed by Nazi aggression. The voices of historical figures like Neville Chamberlain and Adolf Hitler resonate throughout, providing a chilling backdrop to the unfolding drama.