Anti-Japanese War Spy Movie

During the Anti-Japanese War, a large number of outstanding Chinese people were active on the intelligence front. The protagonist Tang Jian and several other characters in this book are such people. They were resourceful and brave, going through life and death, and fought to the death with the enemy on the battlefield where gunpowder smoke could not be seen. However, the struggle is cruel, and the enemy is constantly penetrating into our side. The contest between the two sides is fierce and cruel, and many people have died on the battlefield without smoke.