Rookie policeman Tai Lin yearned to be an artist before he failed an examination and followed in his father's footsteps. One day he interrupts an apparent suicide attempt by a woman standing on the edge of a bridge.

Japanese troops round up Chinese and Russian prisoners of war and take them to unit 731, where they're horribly tortured and experimented on to test new biological weapons.

In 1935, Japan's Unit 731 conducts inhumane experiments. A doctor tries to free prisoners, including his fiancée, from the camp while witnessing atrocities.

During the shut down and destruction of the Japanese test camp Squadron 731 in Manchuria, a soldier becomes infected with a virus developed during the camp's testing and risks spreading it into Japan on the train ride home.

At the Sino-Vietnamese border, a group of nine people headed by a deputy company commander and a platoon commander braved the enemy's intensive artillery fire to the No. 3 post, a natural cave, and began three months of hard fighting.