4.02 - Double Identity

Directed By: Mark Piznarski
Written by: Stephanie Savage & Joshua Safran
Original Airdate: September 20, 2010

Living out a real-life fairytale in Paris, Blair is pursued by a handsome young man, Louis (guest star Hugo Becker), who she suspects is a member of Monaco's royal family. A very concerned Lily asks Serena to help her find Chuck, who hasn't been heard from or seen in months. Meanwhile, Chuck Bass is as we've never seen him before, adjusting to a fresh start in Paris with a mysterious new woman, Eva (guest star Clémence Poésy), at his side. Juliet (guest star Katie Cassidy) offers to help Nate win Serena back, suggesting that reigniting Dan and Vanessa's romance may just be the trick to remove Dan from the Dan-Serena-Nate love triangle.