Plot Summary:In the last summer vacation before the dissolution of the school, Xiao Hong, a fifth-grade student who helped his good friend make a movie, accidentally discovered evidence of his father's suspected derailment. Summer is about to end, and in the process of filming, they see various parts of the town that used to be very busy, but have been abandoned because of the relocation of residents, and their former friends have left one after another. The fear of leaving his hometown and the distrust of his father made Xiao Hong doubt his choice for the future.