During the War of Resistance Against Japan, a CCP army unit guarding the southwest border follows what is ostensibly a trading caravan and discovers that these traders are actually smuggling arms and spy equipment to Chiang Kai-shek and his American allies.
This war film tells the story of a martyr who gave his life in order to save his comrades. It pays tribute to Dong at the same time as it glorifies the communist revolution and provides a model hero for the audience to emulate.