Eric (John White) can be regarded as a standard frustrated young man. Even fighting at home caused his grandmother to die in shock. Eric and his girlfriend Tracy have been dating for two years, but they have never been able to get to base. Now he is the last virgin in the school and a recognized laughing stock. Not to mention these, he is a member of the famous "Stifler" family, and his cousin DeWitt and others are famous in the world, which puts great psychological pressure on him. Trish finally agreed to go to Wushan with Eric. Unexpectedly, their bad luck eventually turned into a shit joke. Fortunately, DeWitt's school was holding a big streaking after the exam, and Eric and his best friend rushed to his cousin, hoping to comfort their hearts with carnival... After the showdown with the dwarf football team, the curtain on the streaking was about to unfold. However, at the critical moment, Eric suddenly understood the meaning of love and sex and made his own choice.