During the stalemate stage of the Anti-Japanese War, there was an undercurrent in the enemy-occupied areas.
The Japanese army secretly launched a secret biochemical experiment codenamed Black Plague. Countless conspiracies were quietly fermenting in the night, and the crisis was approaching step by step.
Lu Zheng, the owner of a trading company, disguised himself as an ordinary businessman, but was actually a top hidden agent planted by the Central China Bureau of the New Fourth Army in the hinterland of the enemy camp. He possesses extreme special combat skills. He can sneak under the eaves in the dark night, move around high walls, predict murderous intentions, and seal the throat with one blow. He is a deadly hidden blade hidden in the market.
The rear intelligence station Su Qingyan used the accounting room as a cover to decipher the secret messages and provide full support throughout the process; the socialite Shen Wanqing circled the circle of senior Japanese officials, pretending to be flattering and secretly removing traitors; the field doctor Lin Manjun lurked in the enemy's hospital, waiting for opportunities to disrupt the experimental conspiracy.
Double lines of light and dark, coordination between inside and outside.
Lu Zheng intercepted and killed the enemy's expert on a rainy night, broke through the siege with heavy troops, and tore open the Japanese army's conspiracy network in the shadow of swords and guns; the three female protagonists each used disguises and penetrated step by step, stirring up undercurrents in the intertwined drinking glasses and the shadow of the scalpel.
The Japanese invaders' crazy counterattacks followed one after another, with a deadly siege and dense traps. He single-handedly made a comeback from the desperate situation, using his blade and perseverance to protect the mountains and rivers in the most dangerous battlefield behind enemy lines.
