The gang convinces Jen to throw a small get-together for New Years at her house, and everyone is excited, including Nikki who's coming back from Acapulco with her parents. However, Jonesy tries to turn the party into a "chick fest." Meanwhile, Wyatt takes advantage of Serena and Chad's relationship problems to make up with Serena. Note: This episode contains a title that references to the movie Sisterhood of the Traveling Pants.