19. Petty in Pink

Serena enlists Charlie to go undercover Gossip Girl-style to determine why Dan and Blair are spending so much time together, and what role an unexpected visitor is playing in their lives. With Nate's help, Raina decides to go on a search for her long-lost mother. Chuck's hopes about his legacy are dashed with the reveal of devastating information from the past.

Plot summary and ending

Spoilers ahead. Coverage follows the scope labeled below.

Complete story — includes the ending

Suspicious, Serena sends Charlie to spy on Blair and Dan as they begin to spend more time together. Blair is reunited with Prince Louis Grimaldi ( Hugo Becker ), whom she met in Paris. Meanwhile, Nate helps Raina find out what happened to her mother, while Chuck's hopes about his legacy are crushed with the reveal of devastating information from the past. Rufus and Eric try to cheer up Lily by having Lily's annual breast cancer awareness fundraising party be held at the penthouse. Title reference: The 1986 film Pretty in Pink.

Sources and content license

Source and revision history · Adapted from Wikipedia contributors, Gossip Girl season 4. HTML formatting and reference markers removed. · Content license