Season 3

Episode 12: The Debarted

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 navigate their newly complicated friendship. When Jenny is accused of beating up one of her classmates, Eric is faced with a tough dilemma.

Episode 11: The Treasure of Serena Madre

Thanksgiving always has secrets.

Episode 10: The Last Days of Disco Stick!

Hoping to impress the elitist theater kids at NYU, Blair sets her sights on landing a private concert with the hottest musical performer of the year, Lady Gaga. Dan and Olivia sign up to write and star in a school play, based on an idea by Blair and directed by Vanessa. With Blair out of the picture, Serena turns to Nate to help her get through a difficult situation. As a favor to Chuck, Jenny agrees to hang out with Damien, the son of an ambassador who is staying at Chuck's hotel, but the experience proves to be a lot more intriguing than she expected.

Episode 9 - Plasticines

Not satisfied with just being Queen of Constance Billard, Jenny sets her sights on becoming the Queen of all the Upper East Side by landing the hottest escort for Cotillion. Nate and Chuck plot to help Serena and Blair repair their damaged friendship.

Episode 8 - The Grandfather: Part II

Olivia says something she regrets during her appearance on Jimmy Fallons talk show and tries to keep Dan from finding out. With election day around the corner, Nate suspects his grandfather will stop at nothing to get Trip elected to congress. In the midst of another feud with Serena , Blair befriends a new it girl and takes her to an election night party at Chucks hotel, hoping to make Serena jealous. Taylor Momsen, Jessica Szohr, Kelly Rutherford and Matthew Settle also star.

Episode 7 - How to Succeed in Bassness

In this episode.....In need of publicity for his new hotel, Chuck decides to move up his club's opening and enlists Serena's help to get the word out to her celebrity clients. Feeling left out of the planning, Blair attempts to win Chuck's approval by secretly helping him with a problem concerning opening night. 

Episode 6 - Enough About Eve

HILARY DUFF GUEST STARS — Vanessa (Jessica Szohr), hoping to finally win her mother Gabriela's (guest star Gina Torres) approval, desperately vies with Blair (Leighton Meester) for the honor of delivering the freshman toast at NYU, but at what price? Dan (Penn Badgley) invites Olivia (guest star Hilary Duff) to meet Rufus (Matthew Settle) and Lily (Kelly Rutherford), which leads to all sorts of problems for the new couple. Serena (Blake Lively) and Nate (Chace Crawford) team up to help Carter Baizen (guest star Sebastian Stan).

Episode 5 - Rufus Getting Married

WILL LILY & RUFUS GO THROUGH WITH THEIR PLANNED NUPTIALS? / SONIC YOUTH PERFORMS IN THE EPISODE / HILARY DUFF AND MICHELLE TRACHTENBERG GUEST STAR — Lily (Kelly Rutherford) and Rufus (Matthew Settle) decide to move up their wedding to the next day, but will someone or something come between them before they become man and wife? Chuck (Ed Westwick) discovers a secret that Carter (guest star Sebastian Stan) has been keeping from Serena (Blake Lively). Dan (Penn Badgley) and Vanessa (Jessica Szohr) are pulled into one of Georgina's (Michelle Trachtenberg) schemes. Blair (Leighton Meester) is suspect of Bree (guest star JoAnna Garcia) and shares her concerns with Nate (Chace Crawford). Taylor Momsen also stars.

Episode 4 - Dan de Fleurette 

Meanwhile, Lily returns home to Rufus and her family to find that things are definitely not as she left them. Plus, a famous movie actress, Olivia Burke (recurring guest star HILARY DUFF - A Cinderella Story, Material Girls, Lizzie McGuire), enrolls at NYU in hopes of having a somewhat normal college experience, and is assigned to be Vanessa's roommate. Guest star TYRA BANKS (The Tyra Show, America's Next Top Model) appears as Ursula, an actress co-starring in Olivia's movie and someone who Serena befriends.

Episode 3 - The Lost Boy

It's an Upper East Side face-off when Blair and Chuck both set their sights on a particular item up for bid at Sotheby's and the personal stakes are high. Serena suspects that Carter may be up to his old habits, Georgina takes an interest in Dan, and Vanessa begins to suspect that something isn't quite right with Scott . Chace Crawford, Taylor Momsen and Matthew Settle also star. Jean DeSegonzac directed the episode written by Robert Hull.

Episode 2 - The Freshmen

Blair ends up with Georgina as as her roommate in the dorms at NYU. While Serena and Chuck come to blows, so she joins forces with Chuck's enemy, Carter. Nate and Bree try to take their relationship up a gear despite the animosity between their families.

Episode 1 - WTF Headband

As the summer ends, Blair and Chuck are madly in love and adjusting to their new "in a relationship" status, breaking all traditional rules of dating as would be expected. Serena returns from her European adventure with many secrets to hide and a complicated relationship with Carter Baizen.