During the Anti-Japanese War, Liao Zhongming, a genius spy who was hidden in the core of the enemy camp, used dual identities to maneuver in the gaps between various forces, step by step to dismantle the Japanese military's strategic deployment for the hinterland of China, without unnecessary emotional entanglements in the whole process. He stirred up the layout of the enemy camp with extreme wits, delivered key intelligence to the rear base area, and gradually pushed the situation to change in the direction of benefiting the country and the people, and safeguarded the survival of China's national destiny.