Diana has an exciting prospect for Nate. Serena forces Charlie to decide which world she wants to embrace. Dan seeks out Chuck's help to stop the publication of his book.

Serena invites Aaron to be her guest at a charity gala, but after discovering a secret that Aaron has been keeping she begins to question whether he is the guy she thought he was. Show more

Chuck stokes family stress, while Blair’s fashion interference and Nate’s new relationship threaten to disrupt a society event. Show more

Hoping to impress the elitist theatre kids at NYU, Blair sets her sights on landing a private concert with the hottest musical performer of the year, Lady Gaga. Show more

Nate and Serena explore the boundaries of their friendship, and Blair suspects that Chuck is having problems forgetting about the woman he saw at his father's grave. Show more

Chuck, once again, finds himself at odds with his uncle, Jack Bass, while Eleanor puts Blair in charge of making sure her fashion show is a success with an important client. Show more

As much as Blair tries to distract herself from the pain Chuck caused her, his mysterious appearance in Paris with a new woman will force both of them to face what happened. Show more

On her first day at Columbia, Blair attempts to gain membership into an exclusive social club. Serena begins to suspect that her life is being intentionally sabotaged by Juliet. Show more

Nate suspects that Juliet is keeping a big secret from him and decides to confront her. Blair schemes to undermine Chuck's newfound happiness Show more

An anonymous Gossip Girl blast starts a very damaging rumour about Serena. Blair decides to take a class with a powerful businesswoman, who is a guest lecturer at Columbia Show more

When Lily's ex-husband Dr. William van der Woodsen, shows up unexpectedly in Manhattan, Serena finally gets the reunion with her father she has so desperately wanted. Show more

Will's return to the Upper East Side continues to stir up problems for Serena, Lily and Will's long-standing rival, Rufus. Show more

Bart strikes at Chuck’s friends to ensure his son’s submission, though Blair believes she can outwit the wily wheeler-dealer. Show more

One couple repair relationships, but Chuck and Bart being blackmailed, plus Blair deceiving Sage, can undo everything. Show more

Sabotaging Serena’s relationship unexpectedly unites two people at Cotillion, while elsewhere Ivy aids Chuck, then astonishes Rufus. Show more

The summer is drawing to a close. While Blair and Chuck are madly in love, Serena returns from her European adventure with many secrets and a complicated relationship. Show more

The personal stakes are high when Blair and Chuck set their sights on the same item up for bid at Sotheby's. Meanwhile, Serena suspects Carter is up to his old habits. Show more

Blair interferes when Jenny takes her rightful place as Constance Billard's new Queen Bee, and Lily returns home to find that things are not as she left them. Show more

Serena and Dan are forced to deal with their unspoken problems while trapped in a lift during a citywide blackout. Show more

When Serena notices that Dan has been cosying up to the new girl in school, the ever-loyal Blair and her minions decide to befriend her and sabotage the budding new romance. Show more