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

Police attempt to stop Nationalist agents from destroying public buildings in Ruancheng after the Red Army occupies the city.

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.

The early days of the Chinese Revolutionary Movement after 1927

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?

1943, the Japanese Army is falling back to the Pacific, leaving only collaborationist troops. Commissar Yang Xiaodong is sent to inflitrate the provincial capital.