Gossip Girl (2007), Dr Estrangeloved

Serena returns from Europe with many secrets to hide.

Georgina has plans for Blair at NYU.

Serena thinks Carter is up to old habits.

It's the first day of school at Constance Billard which means it's also time for Jenny to take her rightful place as the new Queen Bee.

Will Lily and Rufus get married?

Vanessa vies with Blair to deliver the freshman toast.

Chuck's club opens.

Olivia appears on Jimmy Fallon's talk show.

Jenny wants to be the ultimate Queen Bee.

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. Dan and Olivia sign up to write and star in a school play.

Thanksgiving on the Upper East Side means major drama.

Dan and Vanessa try navigating their complicated friendship.

Chuck tracks the woman he saw at his father's grave.

Chuck learns more of the mysterious woman.

Jenny ponders her relationship with Damian.

Chuck once again finds himself at odds with his uncle, Jack Bass.

Chuck and Blair's relationship is put to the test.

A very pregnant Dorota gets married.

Lily's ex-husband Dr. William van der Woodsen shows up unexpectedly in Manhattan.

Will continues to stir up problems.

Things get tense between Rufus and Will.

Blair must decide whether to meet Chuck at the top of the Empire State Building or risk losing their future together.