Season 1, Episode 5

1. Pilot

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

2. The Wild Brunch

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

3. Poison Ivy

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

4. Bad News Blair

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

5. Dare Devil

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

6. The Handmaiden's Tale

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

7. Victor/Victrola

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

8. Seventeen Candles

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

9. Blair Waldorf Must Pie

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

10. Hi, Society

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

11. Roman Holiday

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

12. School Lies

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

13. A Thin Line Between Chuck and Nate

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

14. The Blair Bitch Project

Blair returns to school after losing her Queen Bee status.

15. Desperately Seeking Serena

Georgina Sparks returns to Manhattan to stir up trouble and Serena's past.

16. All About my Brother

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

17. Woman on the Verge

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

18. Much "I Do" About Nothing

Blair and Georgina face off.

1. Pilot

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

2. The Wild Brunch

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

3. Poison Ivy

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

4. Bad News Blair

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

5. Dare Devil

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

6. The Handmaiden's Tale

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

7. Victor/Victrola

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

8. Seventeen Candles

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

9. Blair Waldorf Must Pie

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

10. Hi, Society

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

11. Roman Holiday

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

12. School Lies

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

13. A Thin Line Between Chuck and Nate

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

14. The Blair Bitch Project

Blair returns to school after losing her Queen Bee status.

15. Desperately Seeking Serena

Georgina Sparks returns to Manhattan to stir up trouble and Serena's past.

16. All About my Brother

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

17. Woman on the Verge

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

18. Much "I Do" About Nothing

Blair and Georgina face off.