E9 • Blair Waldorf Must Pie!

E1 • Pilot

The privileged prep school teens learn that Serena van der Woodsen is back.

41m • 2007

The privileged prep school teens learn that Serena van der Woodsen is back.

E2 • The Wild Brunch

In the wake of a party, Serena receives an ice-cold reception from her best friend.

38m • 2007

In the wake of a party, Serena receives an ice-cold reception from her best friend.

E3 • Poison Ivy

Blair uncovers information about Serena that may not remain a secret much longer.

40m • 2007

Blair uncovers information about Serena that may not remain a secret much longer.

E4 • Bad News Blair

Blair is thrilled when her mother chooses her to be the new face of her clothing line.

40m • 2007

Blair is thrilled when her mother chooses her to be the new face of her clothing line.

E5 • Dare Devil

Dan makes elaborate plans to impress Serena on their first official date.

38m • 2007

Dan makes elaborate plans to impress Serena on their first official date.

E6 • The Handmaiden's Tale

Dan is torn between two girls when his childhood friend Vanessa returns home.

41m • 2007

Dan is torn between two girls when his childhood friend Vanessa returns home.

E7 • Victor, Victrola

Serena and Dan finally acknowledge that they are crazy about each other.

40m • 2007

Serena and Dan finally acknowledge that they are crazy about each other.

E8 • Seventeen Candles

Blair puts on a happy face for her 17th birthday party.

39m • 2007

Blair puts on a happy face for her 17th birthday party.

E9 • Blair Waldorf Must Pie!

Dan naively invites Serena and her family to celebrate Thanksgiving with his family.

40m • 2007

Dan naively invites Serena and her family to celebrate Thanksgiving with his family.

E10 • Hi, Society

Serena has no intention of attending the Ball, until it's announced that Serena must attend.

40m • 2007

Serena has no intention of attending the Ball, until it's announced that Serena must attend.

E11 • Roman Holiday

Blair's father comes home for the holidays with his boyfriend.

41m • 2007

Blair's father comes home for the holidays with his boyfriend.

E12 • School Lies

The gang breaks into the school swimming pool for an impromptu night of fun.

41m • 2007

The gang breaks into the school swimming pool for an impromptu night of fun.

E13 • The Thin Line Between Chuck And Nate

Gossip Girl reports that Serena van der Woodsen has been spotted buying a pregnancy test.

40m • 2007

Gossip Girl reports that Serena van der Woodsen has been spotted buying a pregnancy test.

E14 • The Blair Bitch Project

Blair returns to school after losing her Queen Bee status.

39m • 2007

Blair returns to school after losing her Queen Bee status.

E15 • Desperately Seeking Serena

Serena's world is turned upside down when her former friend returns to Manhattan.

40m • 2007

Serena's world is turned upside down when her former friend returns to Manhattan.

E16 • All About My Brother

One of the Upper East Side teens reveals that he's gay.

40m • 2007

One of the Upper East Side teens reveals that he's gay.

E17 • Woman On The Verge

Serena falls back into old habits; Dan assumes the worst.

41m • 2007

Serena falls back into old habits; Dan assumes the worst.

E18 • Much 'I Do' About Nothing

Blair and Georgina face off.

41m • 2007

Blair and Georgina face off.