Welcome to New York City's Upper East Side, where the girls are dazzling, the guys are gorgeous, and the summer heat is the perfect excuse to throw a fabulous roof-deck pool party. As if we need a reason! It's our last summer together before heading off to college, and things are sizzling -- no, it's not just the weather. Despite that steamy kiss on graduation night, Blair, Serena, and Nate have gone their separate ways. . . though not for long. Blair is off to London with her English Lord boyfriend, Serena's about to become a movie star -- as if she wasn't a star already! -- and Nate's rolling up his well-worn khakis and heading to the Hamptons. Back in New York, Dan and Vanessa are rekindling their love. Fiery! Watch out, this summer is going to be hotter than ever.