With the testers' lives hanging in the balance, Esther goes to extremes to revive Martin; Paul and the company prepare for launch day. ...

Esther and Lucas struggle to come to terms with their new realities; Billie helps Ana through a crisis; Martin begins to act erratically. ...

To activate her mother's memory, Esther returns to their old home and uncovers a shocking family secret. Niels receives an unexpected visitor. ...

Paul learns the truth about Joséphine's disappearance; Niels seeks help at a residential clinic; The testers' hallucinations take a dark turn. ...

Esther tries to help Paul connect with Joséphine in virtual space. Niels learns his status in the test is in jeopardy. Ana rethinks her mission. ...

After stumbling on a clue to Joséphine's fate, Esther worries there's a mole at the company; Billie asks Niels to take a break from seeing Claire. ...

The testers venture out into the world to meet their soul mates; Paul agonizes over Joséphine; Esther takes a drastic step to help her mom. ...

Just as siblings Esther and Paul Vanhove recruit a group of young people to test their revolutionary soul mate implant, investors drop a bombshell. ...

Blair must make a difficult decision about her future, the consequences of which could hurt those she loves most. Serena takes the blame for an incident with Gossip Girl ...

The much-anticipated 100th episode will open with a musical dream sequence featuring Serena, Blair and all the men in their lives. Also, while Chuck wrestles with the rea ...

Blair has been mysteriously absent after she lost the baby, which lead Louis and Chuck to suspect her of having an affair. Eventually they find out that she spends a lot ...

Lily throws Charlie a party to officially introduce her to New York society. Meanwhile, Charlie's ex-boyfriend, Max, throws a wrench into Charlie's future as an Upper Eas ...

Serena is hard at work planning a dream bridal shower for Blair, but it should come as no surprise that Serena has to plant some false information about the shower in ord ...

Blair makes all of her former minions and Charlie compete to secure the coveted bridesmaid spots in her upcoming royal wedding. Nate is tired of keeping his relationship ...

In the midst of celebrating Yom Kippur with family and friends, Blair and Louis find themselves in a power struggle with Louis' family. Serena's boss puts Serena in the a ...

After much deliberation, Dan decides to gather Serena, Blair, Nate, Chuck, Rufus and Lily to reveal the truth about his book in the hope that they will support him at his ...

Nate must decide whether to cross moral lines at Diana's request. Dan has figured out who is publishing his book, and seeks help to stop it, but he ends up in the spotlig ...

Nate reconnects unexpectedly with Diana, who offers him an exciting opportunity. Serena forces Charlie to decide which world she wants to embrace. Dan seeks out Chuck's h ...

Serena loves her new job in Hollywood, but makes a costly misstep when she tries to impress her boss. Chuck and Nate arrive in Los Angeles as the last stop of their Lost ...

Season four wraps up with an explosive finale, including the return of Georgina Sparks and Constance Billard mean girls Kati and Is, a cameo by Gossip Girl author Cecily ...

Charlie is finally starting to feel less like a fish-out-of-water with Serena and her friends, but complications present themselves when Charlie is invited to attend the ...

Blair's dreams appear to be coming true, but Serena threatens to jeopardize it all by dredging up Blair's past. Charlie befriends Vanessa, who may or may not have a hidde ...

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 playin ...

As Lily awaits the consequences of her decision, William van der Woodsen, CeCe and Lily's sister, Carol, come into town to support her and be part of a Taschen photo shoo ...

Blair is pursued by a handsome young man she suspects is part of Monaco's royal family. Chuck adjusts to a fresh start in Paris with a mysterious new woman, Eva. ...

After having spent her Parisian summer alone (and in Serena's shadow), Blair hopes to change things when she meets a handsome young man who may be a real prince. But Sere ...