Grandpa Sanxi, who suffers from memory impairment, came to Paris to cover the Olympics with his granddaughter Xiaomi, a sports reporter. Unexpectedly, grandpa accidentally disappeared. After work, Xiaomi searched for him to no avail. French-Chinese young man Guoxing encounters Grandpa Sanxi who is lost on the street. When he learns that the old man is separated from his granddaughter and his memory is blurred, Guoxing decides to help. He cleverly capitalized on the Olympic craze by live broadcasting and filming a video of Grandpa Sanxi's iconic "Chinese martial arts cross-dressing" look cheering for Chinese athletes, which attracted widespread attention. Finally, with the help of Guoxing and enthusiastic netizens, Grandpa Sanxi reunited with his granddaughter Xiaomi, who was anxiously looking for him, in Paris.