[s4e19] Petty In Pink -

Serena becomes suspicious of the amount of time Dan and Blair are spending together.

At a high-profile party, Charlie captures a video of Dan and Blair kissing.

The video is blasted to everyone at the party, exposing their secret relationship. [S4E19] Petty in Pink

Serena's cousin who goes undercover to spy on Dan and Blair.

. The episode originally aired in April 2011. It centers on the complicated relationships of the Upper East Side elite as a major secret is captured and blasted to the school community. 🎬 Episode Summary Serena becomes suspicious of the amount of time

Serena enlists Charlie to investigate Dan and Blair's activities.

The suspicious friend orchestrating the investigation. [S4E19] Petty in Pink

The Upper East Side queen dealing with the fallout of the leaked video.