World War I was the first time aeroplanes were deployed for warfare. The then rickety flying machines fought crucial dogfights as both sides struggled for air supremacy. Flying aces like Manfred von Richthofen, aka The Red Baron, won fame and glory for their aerial expertise. Four Years of Thunder reveals, for the first time, the inside story of the air war in World War I with the use of some of the most stunning and authentic footage ever assembled. This is the most comprehensive and authentic treatment of the subject ever featured on DVD. Spanning the development of aviation technology in World War I, it begins with the first great air-race carnival and ends with the fledgling development of long range bombing.