Serena enlists Charlie to go undercover Gossip Girl-style to determine why Dan and Blair are spending so much time together, and what role an unexpected visitor is playing in their lives. With Nate's help, Raina decides to go on a search for her long-lost mother. Chuck's hopes about his legacy are dashed with the reveal of devastating information from the past.
- Directed by
- Liz Friedlander
- Written by
- Amanda Lasher
Guest stars
Kaylee DeFer
Ivy Dickens
Francie Swift
Anne Archibald
Catherine Corcoran
Minion
Tika Sumpter
Raina Thorpe
Hugo Becker
Louis Grimaldi
Kevin Stapleton
Andrew Tyler
Connor Paolo
Eric van der Woodsen
Amanda Setton
Penelope Shafai
Zuzanna Szadkowski
Dorota Kishlovsky
Alice Callahan
Jessica Leitenberg
Dominik Tiefenthaler
Lucien
Luke Kleintank
Elliot Leichter
All episodes — Season 4
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S4 E1Belles de Jour
Sep 13, 20107.641 min
Blair and Serena spent their summer living it up in the belly of the beast: Paris, France. But where there's Paris there's bound to be boutique, Balenciaga, and of course, boy trouble. Unaware of Chuck's shooting in Prague, Blair struggles
S4 E2Double Identity
Sep 20, 20107.941 min
Living out a real-life fairytale in Paris, Blair is pursued by a handsome young man, Louis, who she suspects is a member of Monaco's royal family. A very concerned Lily asks Serena to help her find Chuck, who hasn't been heard from or seen
S4 E3The Undergraduates
Sep 27, 20107.742 min
On her first day at Columbia, Blair attempts to gain membership into an ultra-exclusive social club, Hamilton House .... but she's in for a few big surprises. Serena begins to suspect that Juliet is intentionally sabotaging Serena's life an
S4 E4Touch of Eva
Oct 4, 20107.942 min
Nate suspects that Juliet is keeping a big secret from him and decides to confront her. Blair schemes to undermine Chuck's newfound happiness. Dan finds himself torn between his feelings for Serena and Vanessa.
S4 E5Goodbye, Columbia
Oct 11, 20107.642 min
An anonymous Gossip Girl blast starts a very damaging rumor about one of Columbia's new students, Serena. On her path to greatness, Blair decides to take a class with a powerful businesswoman, Martha, who is guest-lecturing at Columbia, but
S4 E6Easy J
Oct 25, 20107.941 min
Although Blair made it perfectly clear that Little J was no longer welcome in Manhattan after what happened with Chuck, Jenny is tempted by a once-in-a-lifetime opportunity to meet Tim Gunn, which could be a game changer for her future. Mea