When Shanghai fell in 1940, things were peaceful on the surface, but in reality there was an undercurrent. Shen Yan, a top student at the Central Military Academy, works as a translator at the Japanese Consulate in Shanghai under a pseudonym, codenamed "Dark Blade". On the surface, he obeys the Japanese army, but in fact, he secretly delivers information to the underground party.
The road to lurking is full of dangers. Yamada Ichiro, the section chief of the Japanese military's special higher education course, is suspicious and ruthless. He has tested Shen Yan many times, and the puppet traitors around him are also eyeing him. Shen Yan relied on wisdom and calmness to avoid danger, and conveyed key information such as the deployment of Japanese troops and arms routes to assist the anti-Japanese base area operations.
He collaborated with Su Qingyuan, an underground party liaison under the cover of a reporter. The two had a mutual affection for each other in dangerous situations but buried their hearts deep in their hearts. They jointly planned actions such as assassinating senior Japanese military officials and sabotaging combat plans.
A turning point comes when a traitor appears in the underground party, Shen Yan's identity is exposed, and Yamada Ichiro sets a trap. In order to protect Su Qingyuan and the undelivered intelligence, Shen Yan deliberately diverted the Japanese troops and allowed Su Qingyuan to successfully break out of the encirclement, but he was unfortunately captured.
Faced with severe torture by the Japanese army, Shen Yan remained tight-lipped. At the climax of the plot, Su Qingyuan led the underground party and guerrillas to raid the consulate for rescue at the Japanese army's celebration banquet. During the melee, Shen Yan broke free, fought desperately with Yamada Ichiro and beheaded him, and then successfully evacuated under the cover of his comrades, and continued to devote himself to the cause of lurking and resisting Japan.
Core highlights: The spy war is full of twists and turns, depicting the struggle and perseverance of the lurkers, the intertwining of love and hate, restoring the background of the times, and combining the feelings of family and country with the excitement of the spy war.
