On June 1, students get together with the home-bound People's Volunteer Army in Zhongshan Park. Volunteer Yang Zhiping (杨志平) notices that two students don't wear Red scarfs, which symbolize the Young Pioneers of the Chinese Communist Party. Before he leaves, he encourages the students to study hard, help each other, and try to become a model class. Student Liang Huiming (梁慧明) is touched by his words and tries to help the two, but they do not appreciate it. This make Liang feel sad. Classmates sympathize with Liang and lose faith in the two.
