The uptown girls are headed downtown as Serena and Jenny take on their new fabulous roles as rock-star model girlfriends of New York's hottest band, The Raves. Meanwhile, Dan is to busy drowning his sorrows in empty bottles to notice a mysterious French beauty who has a penchant for dirty, Jim Morrison-wannabe lead singers. Blair takes residence at the Plaza to think about her future. Will she become a gun-toting international spy or Manhattan's snobbiest society hostess? Decisions are so difficult! Sounds like everyone needs a day off at the spa. And Senior Spa Day promises to serve up further doses of scandal for New York's busiest private-school vixens...