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.

To help the Koreans against the imperialist Americans, Feng Yang, a scout for the Chinese army, must take a crack platoon to blow up the Kangping bridge in order to cut off the American retreat/reinforcement and make possible a major assault on American positions.

During the Cultural Revolution, a young student from Peking is sent to live and work in a mountain village, where she plays a leading role in community development.