Eric celebrates his 18th birthday. Meanwhile, Serena is torn between her family and Ben; Blair becomes overzealous with her career aspirations; and Chuck continues to be distant with Lily.
Touch of Eva, Nate decides to confront Juliet when he thinks she is keeping a secret from him Blair tries to undermine Chuck’s newfound happiness Dan is torn between his feelings for Serena and Vanessa.
Blair is ill-prepared for an unexpected party guest on her birthday. Meanwhile, Serena and Nate try to put an end to Chuck and Blair’s endless games. Singer Robyn performs.