Jim Levenstein has finally found the courage to ask his girlfriend, Michelle Flaherty to marry him. She agrees to get married, but the problems don’t stop there for Jim. Now along with Paul Finch and Kevin Myers, Jim must plan the wedding. Unfortunately Steve Stifler is in town and won’t let the wedding go past without having some fun himself, which includes setting up a secret bachelor party.
It’s the wedding of Jim and Michelle and the gathering of their families and friends, including Jim’s old friends from high school and Michelle’s little sister.