Overview:Isoroku Yamamoto, Commander of the Combined Fleet, goes to Bougainville to inspect the front lines in order to boost the morale of the Southern Army, which is repeatedly fighting fierce battles. Encrypted telegrams sent by the Japanese military intercepted by the U.S. military. What is the strategy of the US military to shoot down Director Yamamoto's plane? Director Yamamoto's plane takes off even if he dares to expose himself to danger. Time ticks by until the moment of destiny.