Don is honored at a banquet for the American Cancer Society, but finds his professional reputation has been damaged. Sally lends a hand to a relative. Megan’s parents come to…

Megan has second thoughts about her future at Sterling, Cooper, Draper, Pryce. Peggy lashes out when she’s inadvertently put in the uncomfortable position of having to lie. Pete’s effort to…

Don attempts to regain his creative spark, but undermines a member of his staff while doing so. Roger pursues some new clients, and in the process, hurts Jane. Betty displays…

Harry finds himself in an uncomfortable position after reconnecting with Paul Kinsey who has joined the Hare Krishnas. Lane takes drastic and unethical measures to get out of financial trouble….

As Sterling Cooper Draper Pryce tries to build upon its current business, Peggy is given new responsibility. Don and Harry indulge a client. Betty contemplates her mortality after seeing a…

Don has an encounter with someone from the past. Meanwhile, Roger increases Peggy’s workload, and Joan comes to a momentous decision.

Lane attempts to land an account with Jaguar Cars, leading to a altercation with Pete. Pete and Trudy host a dinner party in the suburbs.

For the Draper family, life has changed. The children must adapt to a new home, a new brother, and a new stepmother. Don seems to have everything a man could…

Don and Megan work out some of their issues, Roger and Pete butt heads, and Joan has a run-in with a house guest.

In a fashionable farewell to remember, our favorite Upper East Siders join forces for one last soiree, and the shocking identity of Gossip Girl is finally revealed.

Serena volunteers to help Dan find a new place to live but their time together brings up unexpected emotions.

As Chuck and Sarah try to realize a new, safer future, Morgan’s past as the Intersect sends them to Vail on one last mission, where they enlist the help of…

Serena and Dan realize that they need to make amends with the people they have wronged. Chuck’s search for evidence of his father’s illegal activities leads him to a showdown…

Serena and Dan decide to throw their first Thanksgiving together, inviting only their closest friends, but everyone seems to have their own agenda for attending. Feeling defeated by his father,…

When a mission in Japan becomes a hostage situation, Sarah and Chuck must face the merciless Nicholas Quinn aboard a speeding Japanese bullet train. Meanwhile, the mission leaves Casey with…

After a harrowing mission, Sarah returns to Chuck with a huge secret. Meanwhile, Ellie and Awesome are presented with a new opportunity that could change their lives.

After a run-in with an increasingly paranoid Bart, Blair grows alarmingly concerned for Chuck’s safety. However, feeling confident that his father will never hurt him, Chuck makes a deal that…

Chuck enlists his family, friend and some unexpected allies as he races to stop Nicholas Quinn from destroying everything Chuck has built over the past five years.

Feeling the pressure to make her first Waldorf Designs fashion show a success, Blair must rely on help from an unlikely source, but some unexpected scheming causes a scandal on…

Chuck’s continued investigation into his father’s dealings leads him to an unlikely event with Manhattan’s elite, where he hopes to find the one person who can tell him the truth…

After Eleanor gives Blair an ultimatum, Blair is even more determined to remedy Waldorf Designs’ problems by making a splash with a dress at the upcoming Cotillion, but a shocking…

While Chuck and Sarah contemplate the next step for Carmichael Industries, Casey’s forbidden love, Gertrude Verbanski, walks back into his life with a questionable mission in South Beach. Meanwhile, Jeff’s…

Trying to prove herself in adult society, Serena hosts the Central Park Conservancy’s big gala, of which she is now the newest Board Member, and she and Nate both learn…

After a brief encounter abroad, Chuck and Blair make a promise to each other about their relationship, which leaves them once again apart. Dan, with some help from an unlikely…

To celebrate their official coming out as a couple, Blair and Dan host a glamorous British-themed Salon, including guests Julian Tepper and Jenna Gribbon Lola lands the audition of a…

Blair feels like her Upper East Side status might be slipping away and devises a plan to assure that doesn’t happen. Meanwhile, Lily throws a family gathering – including William,…

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…

Blair’s flashbacks reveal the fallout of her and Chuck’s car accident, which Nate realizes may have been caused by foul play. Meanwhile, Lily gets a private eye to locate Charlie;…

Blair prepares to celebrate her upcoming royal wedding with a bachelorette party, but others scheme behind her back to make this a night to remember. After discovering the truth behind…

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 reality that Blair…

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 in…

It’s Valentine’s Day on the Upper East Side and Blair can’t resist playing cupid for someone she loves. Georgina is intent on stirring up more drama, so she decides to…

Dan feels honored when he learns that Upright Citizen’s Brigade is performing excerpts from his book, Inside. Blair tries to prove Serena’s suspicions wrong in order to save their friendship…..

Blair thinks Cyrus may have found a potential loophole in her prenup. Chuck and Georgina partner up in a scheme, but it has an unpredictable outcome.. Meanwhile, a family crisis…

Chuck invites Jack to town to thank him for saving his life, but finds the trip doesn’t go exactly as planned. Blair and Dan attempt to consummate their new relationship…

Serena decides she is ready to relinquish the spotlight and sets out to make a reluctant Lola the next “It Girl” of the Upper East Side, starting with modeling at…

Wormholes randomly materialize around Eureka as the Department of Defense is set to shut the town.

When Allison’s genius older brother comes to meet her new husband, Carter feels the pressure of not being smart enough to measure up.