Throughout the first film in the original series, Jim Levenstein (Jason Biggs) tries to develop a relationship with his school classmate Nadia (Shannon Elizabeth).

Steve Stifler (Seann William Scott), the obnoxious jock of the group, provides them with unorthodox advice while hosting wild parties in the meantime.

[2][3][4][5][6][7][8][9][10] In the original American Pie (1999), Jim Levenstein and his friends Kevin Myers, Paul Finch, and Chris Ostreicher attempt to lose their virginity before their high school graduation.

[11] In American Pie 2 (2001), Jim and his friends organize a party at a summer beach house in Grand Harbor reuniting the high school gang.

[13] In the years that have passed since American Wedding, the most recent installment American Reunion (2012) shows Jim and Michelle married with a child, and Kevin has gotten married himself, whereas Oz and Heather grew apart, Finch still has not found love (not counting Stifler's mom), and Stifler has not come to terms with the fact that his teenage years are long gone.

Now these lifelong friends have come home as adults for their thirteenth high school class reunion, to reminisce about – and get inspired by – the hormonal teens they once were.

After a failed attempt at sex with his girlfriend Tracy (Jessy Schram), she gives Erik a free pass to go to the University of Michigan, where his cousin Dwight (Steve Talley) attends, to lose his virginity.

He must complete a series of tasks before he can join Dwight's fraternity and also begins a new relationship with Ashley Thomas (Meghan Heffern), a girl he met in the co-ed bathrooms in their dorm.

Set in East Great Falls, a fire in the school's library results in the destruction of the Book of Love (the "Bible" from the first film).

Aside from the raunchy humor, the common elements among the American Pie Presents films are the continued presence of Jim's Dad and members of the Stifler clan.