Ep 9. Blair Waldorf Must Pie!

In Gossip Girl season 1 episode 9, named "Blair Waldorf Must Pie!", Blair's favorite holiday, Thanksgiving, is fast approaching, but it's not a happy time for her family. Her parents are in the middle of a divorce, and her father is bringing his new boyfriend to their Thanksgiving dinner. Meanwhile, Blair is also dealing with the aftermath of her breakup with Nate. She's hurt and jealous when she sees Nate with another girl, and she doesn't know how to move on.

Serena tries to cheer Blair up by organizing a surprise Thanksgiving feast at her penthouse. She invites all of their friends, including Dan, who is still at odds with Serena over their previous argument. At the feast, tensions run high between Blair and her mother as they argue about her father's new relationship. Dan tries to make amends with Serena, but his efforts are met with resistance.

As the evening progresses, secrets are revealed and tensions boil over. Blair is devastated when she learns that Nate may have cheated on her. She confronts him and their argument leads to a shocking revelation that changes everything.

Meanwhile, Serena receives a mysterious phone call that leaves her rattled. She tries to keep the news from Dan, but he can sense that something is wrong. As the night wears on, the drama reaches a climax when a shocking accident occurs that threatens to ruin everyone's Thanksgiving.

In the end, secrets are exposed and relationships are tested in "Blair Waldorf Must Pie!". Blair is forced to confront her feelings about Nate and his betrayal, while Serena must deal with the consequences of her mysterious phone call. The episode ends on a somber note as the characters try to come to terms with the aftermath of the accident. It's a dramatic and emotional episode that will leave fans on the edge of their seats.