The story takes place in 1984. Ma Dong (played by Hu Jun) is a national security scout who is sent to the Military Industry 202 Factory to lurk here to ensure the smooth development of the "Blue Fish" nuclear submarine. At the same time, a group of evil foreign forces are eagerly trying to obtain the confidential drawings of the nuclear submarine, and they
The story takes place in 1984. Ma Dong (played by Hu Jun) is a national security scout who is sent to the Military Industry 202 Factory to lurk here to ensure the smooth development of the "Blue Fish" nuclear submarine. At the same time, a group of evil foreign forces are eagerly trying to obtain the confidential drawings of the nuclear submarine, and they