An unstable woman stops taking medication and mows down 10 people with her car; a former rock star wages an anti-psychiatric drug campaign.

Rory finally learns her mother can't afford to buy the Dragonfly Inn since financial aid for Yale didn't come through. She decides to take matters into her own hands with a quick visit to her grandparents right before graduation. Luke has second thoughts about a trip with Nicole after something Lorelai tells him. Jess makes silent contact with Rory after her graduation ceremony from Chilton.

Palmer has had enough of Sherry's power plays and has a final showdown with her in the hotel ballroom. Nina knows that the Drazens have no leverage without Kim, so she calls Jack and tells him that Kim's body was found floating in the harbor. Jack is crushed by grief and then he flies into a rage. He rushes the Drazens and a bloody shoot-out ensues. Nina's cover is blown and she makes a final dash for safety, leaving a bloody trail behind her. Jack is able to apprehend her before she can escape, but he is stunned to learn ...

The gang learns a new way to get their dates to sleep with them after Ted walks in on Robin's date sitting naked on the couch.

Dan’s newest mission requires him to deal with a man who claims he’s a time traveler. While Livia finds herself on a separate mission too, just before her wedding to Henry. Meanwhile, Jack talks to Elliot Langley, and Katie thinks that Dan has been wounded again after she discovers blood in the house.