[Machine Translation] In March 1944, two large flying boats headed for the Philippines from Palau crashed at sea due to rough weather. On board were Commander-in-Chief of the Combined Fleet Admiral Koga and Chief of Staff Fukutome. The Chief of Staff and nine others survived, but were taken prisoner by enemy guerrillas. And what happened to the most important classified documents in the possession of the Chief of Staff? This is a superb documentary that challenges the great mysteries of military history.