Yu Liang Sheng is forced by his mother to go to western Sichuan to look for his younger sister Yu Xiao, who is on her way to teach, but learns that she has been kidnapped by human traffickers, and he embarks on a perilous journey to rescue her. On the way, he accidentally encounters Gu Xiao Man, who is also a drifter, not realizing that the two are about to be involved in a bigger conspiracy. Each party has its own agenda, and a series of hilarious farces are staged. What awaits them at the end of their journey?