In 1945, the Eighth Route Army wiped out the 10th Army of the puppet army in Sishui City, killed the puppet army commander Rong Ziheng, and won a great victory in Sishui. One of the Japanese troops that was rushing to reinforce, learned that the puppet army was completely wiped out, and did not dare to fight, and retreated rapidly. On the way of retreat, they even slaughtered all the people passing by the Geshanchang Village, creating the horrifying "Geshanchang Massacre". The anti-Japanese squad led by Zhao Chongguang of the Eighth Route Army beat the Japanese army to flee, but this could not completely drive them out of the country. When they were in trouble, a passionate young man named Zhang Erga reversed the deadlock in the war. He brought Zhao Chongguang a message that the Japanese army was building a second line of defense behind the Yamajing Department, where there was an arsenal. Only by destroying the Japanese arsenal could the Japanese army be completely repelled. But the Japanese defense was strong, and there were soldiers and vicious dogs guarding the arsenal in shifts, and the situation was very tricky. Zhao Chongguang and Zhang Erga quickly formed a special warfare team. The experienced Zhao Chongguang was responsible for fighting the Japanese, while Zhang Erga, who was smart and familiar with the terrain, was responsible for formulating tactics. The two had a clear division of labor, doubled their combat efficiency, and worked together towards the goal of completely driving the Japanese out of their homeland. In the face of the Japanese invasion, the special warfare team was unwavering, and a cruel and fierce battle to defend the homeland was inevitable.