In the spring of 1945, Japan established a secret base, Unit 731 in Manchuria, where many innocent Chinese, Korean and Mongolian people were killed in grotesque experiments. An idealistic young doctor , Morishima, is horrified by the experiments being performed in the camp and when his fiancée arrives disguised as a Chinese prisoner he sets out to liberate the camp. A docudrama sequel to the notorious Men Behind the Sun, which pulls no punches when it comes to delivering the shocks!
The film is a graphic depiction of the war atrocities committed by the Japanese at Unit 731, the secret biological weapons experimentation unit of the Imperial Japanese Army during World War II. The film details the various cruel medical experiments Unit 731 inflicted upon the Chinese and Soviet prisoners at the tail-end of the war.
During Korean War Chinese Air Force fought against the American pilots who claimed to be the world's king of the air. Zhang Lei (Cao Huichu), who comes from a poor farming family, is determined to kill the enemy and serve his country after graduating from aviation school. After arriving at the front line, both the division commander (played by Wang Runshen) and the team leader were satisfied with his test flight results, but the proud Zhang Lei did not want to be a wingman and thinks he is useless. His pride and conceit made him pay the price. With the help of leaders and comrades, he gradually got out of complacency. In the next air battle, he used his actions to correct his mistakes and actively helped the lead plane complete aerial tactical coordination and shoot down the enemy plane. After his own plane was injured and on fire, he was still able to cover his comrades and crash the injured plane into the enemy plane
After being swindled out of his land by a local landlord in 1930s China, a grandfather commits suicide. His son burns down the landlord's house in a fit of rage, then escapes to join the PLA. His grandson later joins the PLA too in the 1940s to avenge his father, grandfather and mother.