1950, PLA scout Tai Zeng disguises himself as a Taiwan agent to defeat the bandits in West Guangxi province.

The film is adapted from the section "The Intelligent Conquest of Wuhushan" in Qu Bo's novel of the same name, telling the story of the People's Liberation Army's campaign to eliminate the bandit forces composed of remnants of the Kuomintang that were entrenched in Northeast China.

Five soldiers of the Eighth Route Army fight heroically to cover the evacuation of local people from border area between Shanxi and Hebei provinces as the Japanese attack.

About May 1942, the Japanese elite mobilized thousands of troops to bases in central Hebei. A platoon of army troops were ordered to cover the transfer, the platoon leader was seriously injured. Yan Zhigang Li met his aunt and was saved. He led the soldiers with Qingsha Zhang, to fight the enemy , remove and destroy the enemy's guard towers and to break their cruelty.

In 1946, Chiang Kaishek commits 200,000 troops to an attack on the Communist-held central plains of China. After the PLA main force in the area retreats, the Nationalists also capture the area around the Dabie Mountains. County Party Committee Secretary Liu and county organizations department director Mo Wenjie lead a guerrilla troop against the KMT forces. Will the film belief of the revolutionary cadre be able to overcome not only the enemy, but cold, hunger and betrayal?

An underground CPC telegrapher, Li Xia, fights against the Japanese enemy and dies before the eve of Shanghai's liberation in 1939.