During the heyday of the Tang Dynasty in 700 AD, China had many economic and cultural exchanges with Arabia and the Middle East. The Silk Road in the Western Regions was an important route for mutual exchanges. In order to defend its integrity, the Tang army constantly confronted the Turks. Lieutenant Li (Jiang Wen) who guarded the border violated military orders because he was unwilling to massacre the elderly, women and children of the Turks. In order to arrest him, the emperor appointed the Japanese envoy Lai Xi (Nakai Kiichi) who had repeatedly requested to return to the country as a constable, and promised that as long as Li Li could be arrested, he would be able to fulfill his wish to return to the country. At that time, the war was severe. Lai Xi, who came to the Western Regions, was entrusted to escort the general's daughter Wenzhu (Zhao Wei) back to Chang'an. On the way, he met Lieutenant Li. After a fierce battle, the two were evenly matched and agreed to fight for life and death under the city of Chang'an. Soon, they ran into the imperial caravan escorting scriptures and the bandit Zi'an (Wang Xueqi) who coveted the camel team, and the life-and-death battle was ready to start.