Join the four best friends as they finish their first year at college and dive into a summer of excitement. Bridget (Blake Lively) journeys to Turkey on an archaeological dig. Carmen (America Ferrera) plunges into the hectic, creative world of summer theater in Vermont. Lena (Alexis Bledel) discovers new love and old heartbreak at the Rhode Island School of Design. And in the Big Apple, Tibby (Amber Tamblyn) takes a big step in her relationship with Brian. Romance, laughs, tears and that pair of jeans that keeps the girls together even when they're far apart - all are here in a heart-lifting second film based on Ann Brashares' bestsellers. It's a perfect fit!