The story picks up 12 years after the events of "American Pie Presents Band Camp." The gang is reunited in their hometown of Stiflerville for the wedding of Jim Levenstein (Jason Biggs) and Molly (Molly Cheek). As they reconnect, old rivalries, and romantic tensions resurface. Meanwhile, Stifler (Seann William Scott) tries to find love, while Michelle (Alyson Hannigan) and her husband Adam (Chris Klein) deal with their own marital issues.