The story of American POWs, who were surrendered in the Philippines to the Japanese Army, then sent to slave labor camps in the northern Chinese city of Mukden (now Shenyang).
Hou is sent by the emperor to the city of Fengtian to capture the leader of the revolutionary forces, code named Baihu, whose identity is not known, not even to his own followers. Hou meets his younger sworn brother Lei, the commander of the forces of Fengtian, whom he had not seen for years. Hou receives reports that Baihu is bringing 'Lotus Heart' from Japan to use against the Imperial government.