Manchuria 1941: Caught sleeping with his Japanese major’s mistress, Manchurian collaborator Tung Fei (Jackson Liu Hsiu-hsien) fatally shoots the man and flees for his life. Overcome by fatigue after hours of travel on horseback, Tung eventually awakens to find himself under the care of hunter Suen (Dick Wei) and his daughter, Ironic (Hsu).

Chen Zhen, a Chinese engineering student in Kyoto, who braves the insults and abuse of his Japanse fellow students for his local love Mitsuko Yamada, daughter of the director, returns in 1937 to his native Shangai, under Japanse protectorate -in fact military occupation- after reading about the death of his kung-fu master Hou Ting-An in a fight against the Japanese champion Ryuichi Akutagawa.

Jackie Chan reprises his role as Chan Ka-Kui (also known in some versions as Jackie) yet again as a Hong Kong cop who works with Interpol to track down and arrest an illegal weapons dealer. Later Jackie realizes that things are not as simple as they appear and soon find himself a pawn of an organisation posing as Russian intelligence.