A group of criminals call themselves the "Northern Detachment". They commit several major crimes on the Beijing-Guangzhou Railway. The Public Security Bureau sends Ma Xiaolong after them.
In Japanese-occupied Harbin, young officer Feng Jiangchu investigates a mysterious "Ghost House" after a thief is found dead inside. Undeterred by warnings, he delves deeper into the case, uncovering a complex web of intrigue involving the Japanese forces and resistance fighters.
In a fierce battle against the British invasion, the commander of the Chinese army sacrifices his life on the line of duty. The British celebrate their victory by hanging his head out on a conquered fortress. To end such humiliation, the commander's daughter seeks help from the leader of the local...
