On August 6, 1945, the United States dropped an atomic bomb on Hiroshima, Japan. The devastating blow that shocked the world ended the most brutal war in human history. After that, General Phillis (Matthew Fox) flew to Japan with MacArthur (Tommy Lee Jones) to deal with post-war affairs. The U.S. military has successively designated 29 Japanese senior officials as war criminals and arrested them, but they feel it is difficult to deal with Emperor Hirohito. Considering Phillis's familiarity with Japan, MacArthur ordered him to assess Hirohito's influence on the war situation within ten days. Knowing the important position of the emperor in the minds of the Japanese people, a chain reaction will be caused by the slightest carelessness. For this reason, Phillis is cautious and tries his best to sort out the life trajectory of an oriental man behind the deified veil. At the same time, he is eager to find the girl Cai (Hatsune Yingliko) who had a brief relationship with him. A short ten-day trip to a foreign country is an important moment that determines the fate of a country and even the world...