After getting mysteriously kicked out of boarding school, Serena van der Woodsen returns to Manhattan's Upper East Side, where the posh townhouses, designer threads and exclusive parties rival her complete and utter fabulousness. All eyes are on S, but will her former best friend Blair Waldorf be willing to share the spotlight?

Reunited BFFs Blair and Serena jet off to the exclusive island of St. Barts for some holiday fun in the sun. With a romantic rock star and a cute stepbrother in tow, it's going to be a sizzling getaway—on and off the beach.