After Li Xianji (Jaycee Chan) broke up with his girlfriend Wang Qian (Wang Ziwen), he found it hard to accept this painful reality and fell back into the vicious circle of jet lag. He traveled through his own time and space, recalling his childhood when he was punished by the teacher for reading extracurricular books at school, his absent-mindedness towards his father's (Jiang Wu) harsh criticism, his yearning for his second uncle's (Yao Lu) proficiency in electronic repair, his obsession with video games, his indifference and disgust towards his colleagues at the company, and of course, every detail of his relationship with his girlfriend. He does not hope to cure jet lag because he still has fantasies of going back to the past, and even sells his kidney and builds a metal arm to fulfill his dream of playing games. However, the cruel reality drags him into the trap of various characters such as the police (Bai Kainan), the policeman Xiao Yin (Li Xiang), the magic doctor Ma (Fan Ming), and the Japanese liar (Yano Koji)... This film is adapted from the famous online animation video created by Li Yang in 2009.