Lieutenant Li (Jiang Wen) has abandoned his post within the Middle Kingdom's Imperial army, and the government has assigned the Japanese fighter Lai Qi (Kiichi Nakai) to bring him back or kill him once and for all. When the two finally meet up, however, they realize that they must join forces to face an even bigger nemesis. But can they put aside their differences and stand together as one? Should they even trust each other at all?