In the prewar days leading up to the Second Sino-Japanese War of 1937, head flight instructor Lt. Katō Tateo of the Imperial Japanese Army-Air Corps trains new volunteers from the Army's Infantry to become Japan's next generation of fighter pilots at the Tokorozawa Flying School. Flying Kawasaki Ko-4 biplanes, Lt. Katō will train both friend and future foe alike. But as war in China breaks out, Katō now in command of the 5th Rentai will take his untested men flying antiquated planes into aerial ...