Season 4: Episode 64: Great Xpectations
Andie gets accepted into Harvard in advance, but accomplishing what should be the biggest thing in her life doesn't exactly makes her happy. She decides to explore different paths in her life by going to a rave. In the party, Drew gives Jen drugs and Andie ends up with them and takes them. They have a reaction with her anti-depressives which makes a disastrous combination and almost leads her to death. Mitch and Gail decide to keep their baby and things get awkward during the celebration when Gretchen brings Pacey and Joey with her.