Lin Wanqing, an underground member of the Communist Party of China, is calm, intelligent, tenacious and courageous, and is good at disguise and intelligence analysis; Shen Yanzhi, the leader of the military unification action team, comes from a patriotic family, is just and kind, and is dissatisfied with the infighting and compromise of the military unification. In the end, he chooses to stick to the justice of his family and country, and works tirelessly to convey our party's intelligence together with Lin Wanyi. In the end, important information was protected, and the two fell in love with each other and came together.
