Lin Guifang, a 49-year-old cleaning supervisor at a shopping mall, leads a group of ordinary office workers to rehearse at night, finally earning official performance qualification for a community event. However, on the day of the performance, the on-site person in charge, Cheng Yan, temporarily cancels their performance on the grounds that the program exceeds the time limit and their costumes are inconsistent. Lin Guifang insists on checking the rules and finds that the actual duration of the program meets the requirements. To fight for the chance to take the stage, she leads her team members to rearrange the dance within twenty minutes, compressing the performance to three minutes and twenty-eight seconds. Facing temporary adjustments and sudden stage situations, the team members encourage each other, winning first place in on-site popularity and second place overall.