This documentary-style novel is based on the history of revolutionary struggle. In 1941, after Japanese and puppet troops succeeded in surrounding our Tenth Regiment and the Fengluanmi County Committee and county government at Choushuikeng in the Badahé area of northern Pingbei, the enemy used collaborators to spread rumors among the people, sowing confusion and unrest. To break the blockade, reassure the people, raise morale, root out collaborators, and consolidate and expand the base area, Xiao Ke sent Wang Zhendong to form the Fourth Fengluanmi Guerrilla Brigade. The Fourth Brigade selected sixteen experienced squad leaders and soldiers to form a special operations team. In Zai Xiangzhuang, Huairou, and what are now Tunli, Xitiangezhuang, Xikanggezhuang, and Xiejiashan in Miyun, they rooted out collaborators, escorted cadres, raised funds and procured supplies for the base area, assisted with communications, and struck at and intimidated the Japanese and puppet troops along the railway. At the time, Wang Zhendong devised Operation Snakehead, Code Name A, to eliminate Tsujita, the squad leader who had once orchestrated the Choushuikeng massacre and had since been reassigned to the Japanese garrison unit at Huairou Railway Station. The operation aimed to curb the arrogance of the Japanese and puppet troops at Huairou Railway Station and intimidate the gendarmerie, garrison troops, and collaborators in Huairou County, creating favorable conditions for procuring restricted goods.