[s4e19] Petty In Pink Online

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

Serena's cousin who goes undercover to spy on Dan and Blair. [S4E19] Petty in Pink

For more details on the cast and full production crew, check out the episode page on Apple TV . Serena enlists Charlie to investigate Dan and Blair's

At a high-profile party, Charlie captures a video of Dan and Blair kissing. [S4E19] Petty in Pink

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