Chuck, Nate, Blair, Serena and Lola team up to uncover what they think is an explosive secret between Diana and Jack. Meanwhile, Dan is offered a prestigious fellowship in Rome…

Blair enlists Serena to be her stand-in at an important meeting when Blair finds herself needing to be in two places at the same time. Meanwhile, Ivy and Lola team…

When Gossip Girl goes after Blair as she’s never done before, Serena admits she may have unintentionally played an important role in Blair’s latest nightmare. Meanwhile, Nate invites Lola to…

On the anniversary of Bart Bass’ death, Chuck wrestles with an issue from the past and a serious car accident rocks the Upper East Side. Dan and Vanessa attempt to…

Serena invites Aaron to a charity event, but soon uncovers a secret Aaron has been keeping from her. Thinking it will help her get into Yale, Blair agrees to babysit…

Blair sets out on a mission to break up her mother and Cyrus Rose, her new man. Jenny moves in with Agnes as the two continue with their plans for…

It’s Thanksgiving time and Blair is offended when her Mom’s new man hijacks her Thanksgiving traditions. Lily attempts to strengthen the frail bond between Rufus and Jenny. Eric discovers a…

At the Snowflake dance, Blair and Chuck discover their lookalikes hooking up. Aaron’s ex Lexi flirts with Dan, causing trouble with Serena. Nate, Jenny and Vanessa get into a messy…

The entire Upper East Side of Manhattan is rocked when Bart Bass dies suddenly in a limo accident. Serena and Eric take the news very calmly while Lily has a…

In the midst of Fashion Week, a furious Blair learns that her mother, Eleanor, at the suggestion of her protege Jenny, has given Serena and her new socialite friend, Poppy…

Vanessa uses the scandalous picture of Catherine and Marcus to blackmail Blair into being a nicer person, so Blair seeks revenge by enticing Chuck to seduce Vanessa. Lily and Bart…

After Georgina reveals the true reason Serena left Manhattan, Serena goes back into her old habits. Her friends Blair, Nate, and Chuck, in order to help her, have to put…

Blair takes matters into her own hands to help Serena with the manipulative and evil Georgina Sparks. Lily, while keeping Rufus in her mind, prepares for her wedding with Bart…

Dan finds himself between two girls when his childhood friend, Vanessa, returns to N.Y. and declares her feelings for him, just as he and Serena are trying to figure out…

Serena and Dan finally accept that they are crazy about each other, despite that they come from polar opposite worlds. Chuck thinks of investing in a club trying to make…

Blair’s father, Harold, comes home for the holidays with an unexpected guest. Blair cannot hide her disappointment and makes a plan to get rid of Roman forever. Jenny and Vanessa…

Serena, Blair, Nate, Chuck and their class break into the school swimming pool for a night of fun, but when someone nearly dies, the school threatens to expel the person…

Having been recently dethroned as Queen Bee, Blair returns to school with the support of Serena to find she is still on the outs with her old friends. Dan visits…

It’s Ivy week for the Upper East Side teens of Constance Billiard and St. Jude’s and the visiting representatives’ arrival brings more than just college applications. Cut-throat rivalry is at…

It’s the day right after the Kiss on the Lips party and Serena receives a cold reception from her former best friend Blair. Blair reveals that she knows that Serena…

An Iraqi immigrant who murders a former military policewoman in retaliation for torturing her brother at Abu Ghraib prison claims that she is covered as an enemy combatant under the…

Briscoe and Green discover a murdered businessman may have been the target of a well-known criminal , but the investigation stumbles when the FBI acts as the suspect’s alibi.

A bomb at a construction site kills a 12-year-old boy, and the suspects include the bankrupt contractor and a jealous husband.