Noah Levenstein (Eugene Levy), a character in the original series, appears in all films with the exception of Girls' Rules.

When Erik Stifler gets a free pass to do whatever he wants from his girlfriend, he and his two best friends, Ryan and Cooze, head to see his cousin Dwight for the Naked Mile and a weekend they will never forget.

Erik and Cooze start college and pledge the Beta House fraternity, presided over by none other than legendary Dwight Stifler.

Three new hapless virgins discover the "Bible" (a sex manual) hidden in the school library at East Great Falls High.

Annie, Kayla, Michelle, and Stephanie decide to harness their girl power and band together to get what they want their last year of high school.