Episode 1: Pilot
Serena returns to town under abrupt and mysterious circumstances, similar to how she left just one year ago, and her best friend Blair is less than thrilled about this.
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Episode 2: The Wild Brunch
Blair tells Serena she knows about her past betrayal, then turns a cold shoulder to her; Chuck hosts a fund-raiser brunch, and Serena brings Dan to the event; and Jenny and Blair become friends.
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Episode 3: Poison Ivy
Dan and Nate compete for an usher position when Ivy League representatives visit their school. Meanwhile, Blair learns a secret about Serena; Jenny and Eric get acquainted; and Rufus asks Lily for a favor.
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Episode 4: Bad News Blair
Blair's excited to be chosen to model for her mother's new fashion line---until Serena upstages her and it feels just like old times. Meanwhile, Nate and Chuck embark on a wild boys' weekend.
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Episode 5: Dare Devil
Dan goes above and beyond while planning for his first official date with Serena. Meanwhile, Jenny attends Blair's sleepover, where a revealing game of truth or dare is played; and Lily turns to Rufus when Eric goes missing from his treatment center.
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Episode 6: The Handmaiden's Tale
Dan's childhood pal Vanessa returns to town and tells him she wants to be more than friends. Meanwhile, Blair does her best to keep party crashers out of the masquerade ball, but a disguised Dan and Jenny sneak in.
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Episode 7: Victor Victrola
Serena and Dan acknowledge that they are crazy about each other; Chuck contemplates investing in a burlesque club to make his father proud; Nate confronts his father (Sam Robards) about drugs he found in the house.
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Episode 8: Seventeen Candles
At her 17th-birthday party, Blair attempts to mask her strained relationship with Nate; and Dan invites Vanessa to the party so that she and Serena can bond. Meanwhile, Nate's parents pressure him to make a sacrifice for the family.
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Episode 9: Blair Waldorf Must Pie
The Humphreys and Van der Woodsens share an awkward Thanksgiving dinner. Meanwhile, Blair's emotions spiral out of control when she learns that her father isn't coming home for Thanksgiving.
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Episode 10: Hi, Society
Serena has absolutely no intention of attending the upcoming Debutante Ball, until her grandmother, CeCe, announces that she won't take no for an answer. Unfortunately, Dan isn't exactly what CeCe had in mind in terms of a suitable escort for Serena.
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Episode 11: Roman Holiday
Blair's father comes home for Christmas---and brings his boyfriend with him. Meanwhile, Serena and Dan plan holiday surprises for one another; Blair worries what information Chuck may share while vacationing with Nate; and Rufus and Alison's reconciliation hits a bump in the road.
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Episode 12: School Lies
The gang breaks into the school swimming pool for an impromptu night of fun, but when a member of their group nearly drowns, the school threatens to expel the person responsible for the break-in.
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Episode 13: A Thin Line Between Chuck and Nate
Serena is seen purchasing a pregnancy test, and this info gets reported on Gossip Girl's Web site before the facts are all checked.
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Episode 14: The Blair Bitch Project
A dethroned Blair musters up the strength to head back to school, and Jenny tries to keep up with the financial demands of the in crowd. Meanwhile, Serena, Eric and Chuck adjust to their blended families living under one roof.
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Episode 15: Desperately Seeking Serena
As panic sets in for the juniors preparing to take their SATs, Serena has the added stress of dealing with the return of Georgina Sparks (Michelle Trachtenberg), someone from her bad-girl past. Meanwhile, Jenny decides to get a boyfriend, thinking this will elevate her social status. Asher Hornsby: Jesse Swenson.
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Episode 16: All About My Brother
Georgina threatens to disclose damaging details about Serena's past, while Blair and Jenny spread rumors about one another through Gossip Girl. Elsewhere, Dan has information about Asher that Jenny ignores; and Rufus turns to Lily for parenting advice.
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The Virgins
The Pierces