1939, The occupied area of central China. The Japanese army promoted the "Sakura" biochemical project and used plague anthrax to create a no-man's land. Li Yanchuan, commander of the Dingyuan Battalion, was ordered to sneak into the Japanese headquarters in Wuhan and steal the original solution of the antidote. He possesses the secret "face-changing technique" of Jianghu - collecting 3 ml of the target's blood and combining it with fat cream to make a human skin mask. He cannot touch water or fight violently for 72 hours after the disguise. For the first time, he disguised himself as a captured Japanese military doctor, but found on the operating table that what was waiting for him was a whole group of Chinese prisoners of war waiting to be dissected. The knife cannot be unsheathed and the mask cannot be cracked - he used the scalpel to complete the quietest massacre. The second time, he and his sworn brother Zhao Tieshuan cooperated inside and outside, and infiltrated the biological and chemical weapons depot as the commander of the puppet army. But the code had just been changed, and the notches on the coins didn't match. There were footsteps approaching outside the door, and sweat began to form around the edges of the mask. The intelligence sent by Japanese anti-war activist Yamada Ichiro said: "There is a traitor around you." The jade pendant handed by Shen Ruolan suddenly broke, Xiao Shitou was taken into the interrogation room, and Ishii Koji's epidemic prevention force was searching the city for "that Chinese officer who can change his face." Each mask is a journey to death. Every time before he went to die, he was thinking: Can the brothers in Dingyuan Battalion wait until the day of the general attack?
