Official CW synopsis
The privileged prep school teens on Manhattan's Upper East Side first learn that Serena van der Woodsen (Blake Lively, "The Sisterhood of the Traveling Pants") is back in town the way they learn all the important news in their lives -- from the blog of the allknowing albeit ultra-secretive Gossip Girl. No one knows Gossip Girl's identity, but everyone in this exclusive and complicated vicious circle relies on her website and text messages for the latest scoop. Even Serena's closest friend, Blair Waldorf (Leighton Meester, "Entourage"), is surprised to find that Serena has suddenly ended her selfimposed exile to boarding school and returned to Manhattan.

1-1 "Pilot" (09.19.07)
1-2 "The Wild Brunch" (09.26.07)
1-3 "Poison Ivy" (10.03.07)
1-4 "Bad News Blair" (10.10.07)
1-5 "Dare Devil" (10.17.07)
1-6 "The Handmaiden's Tale" (10.24.07)
1-7 "Victor/Victrola" (11.07.07)
1-8 "Seventeen Candles" (11.14.07)
1-9 "Blair Waldorf Must Pie!" (11.28.07)
1-10 "Hi, Society" (12.05.07)
1-11 "Roman Holiday" (12.19.07)
1-12 "School Lies" (01.02.08)
1-13 "A Thin Line Between Chuck and Nate" (01.09.08)
1-14 “The Blair Bitch Project” (04.21.08)
1-15 “Desperately Seeking Serena” (04.28.08)
1-16 “All About My Brother” (05.05.08)
1-17 “Women on the Verge” (05.12.08)
1-18 “Much ‘I Do’ About Nothing (05.19.08)

Blair Waldorf (Leighton Meester)
Dan Humphrey (Penn Badgley)
Nate Archibald (Chace Crawford)
Jenny Humphrey (Taylor Momsen)
Chuck Bass (Ed Westwick)