MISSIONS THAT CHANGED THE WAR: The Flying Tigers Part 1. Narrated by Gary Sinise. In China’s most desperate hour, Chiang Kai-Shek turns to the United States for help. The Japanese are bombing Chinese population centers mercilessly. China’s decimated air force is powerless to stop them. Chiang dispatches his American consultant - former U.S. Army Air Corps officer Claire L. Chennault - to obtain the airplanes and pilots needed to defend China. Tex Hill resigns his Navy Commission and volunteers.