Two people whose lives were on completely different trajectories meet during a chance encounter to experience a brief yet romantic journey together. The young man from the mountains and the girl from the big city work hard to walk into each other's worlds.

Jialing County is hit earlier than expected by a flood in 1982 and control measures were not yet implemented.

Zheng Kai, a successful businessman, suffers an unexpected loss. Angry and frustrated, he goes for a drink. A mysterious taxi driver takes him home, but he leaves his phone number for the driver because he didn't have money for the fare. However, the driver begin to harass him through this number, and the nightmare begins.

During the Cultural Revolution, the distinguished Marshal He Long is denounced and persecuted.

A'gan, a high school senior with no expectations for the future and a carefree attitude toward everything, finds himself suddenly under strict supervision when his father, who has been away for a long time, returns home. An accident, along with a "mutual assistance agreement" between his father and Lin Xin'er, A'gan's crush, inadvertently leads to his father becoming A'gan's deskmate. This triggers a string of comical and heartwarming moments as both father and son gain new insights into love and life.