During the War of Liberation, undercurrents surged in Chengguan Town at the junction of Sichuan and Shaanxi, and it became the core of the espionage battle between the Kuomintang and the Communist Party. The communications team of the Kuomintang Party Communications Bureau is entrenched here. The spy chief Zhang Dechang is suspicious and has laid a dragnet. The deputy section chief Deng Wenbiao is eager for quick success and ruthless killing. The whole city is shrouded in white terror. The underground intelligence communication line is repeatedly threatened, and progressive people are in danger.
Lu Xiaofei lurks in the Intelligence Section of the Kuomintang Communications Group, and moves among the core circle of spies in a calm and capable disguise. On the surface, he obeys orders and deals with all forces, but in fact he is an underground intelligence agent of the Chinese Communist Party, shouldering the top-secret mission of guarding the intelligence line, rescuing arrested comrades, and instigating rebellion against the Kuomintang defenders. He made meticulous arrangements step by step, and cooperated tacitly with the revolutionary comrade Su Manwei who was also lurking in the enemy camp. He used false appearances to confuse the enemy. Amid the suspicions and tests of the secret agents, he secretly passed on information, explored the whereabouts of the arrested comrades, and resolved the exposure crisis time and time again.
From the life and death protection of the secret contact point of Chunhe Pharmacy, to the secret protection of the advanced teachers and students of Xuanhan Middle School; from exploring the layout of the secret agent dungeon, rescuing arrested patriots, to dismantling the enemy's serial traps, and smashing the suppression conspiracy, Lu Xiaofei was surrounded by tigers and wolves, walking on the tip of a knife, and breaking through the mist. He skillfully took advantage of the enemy's internal contradictions to implement counterinsurgent tactics, instigating an uprising among the Kuomintang defenders and gradually dismantling the enemy's intelligence deployment.
The whole city is under martial law, surrounded by spies, and spies are everywhere. Every intelligence transmission and every secret confrontation is a thrilling life-and-death game.
