Departure (2019)

S1E9 Blair Waldorf Must Pie!

Dan decides to invite Serena and her family to celebrate the holiday with his own, which puts Rufus and Lily in a tricky position since they are unaware of their children's complicated history. The kids remain oblivious to the tension. Meanwhile, Blair panics upon discovering that her father will not be returning for Thanksgiving. Nate also spends the holiday with his family, but their dinner takes a turn for the worse, quickly becoming increasingly uncomfortable.