Rob a college roommate of Nick's wants to test a device for tracking kids. Will Nick agree to testing the tracking device on L.S.P. kids
Emily guilts Rory into bringing Jess to a Friday night dinner which turns out to be an unqualified disaster Lorelai, Alex, Sookie and Jackson go to New York for the weekend Jess gets a black eye in an altercation with an opponent he is too embarassed to reveal to anyone but Luke Zach and Brian realize that Lane and Dave are hiding something from them, but miss the mark on the true nature of the secret Rory and Jess have their first argument, and Luke helps patch things up.
Detectives Wagenbach, Mackey and Wyms investigate a massacre at a women's shelter, and Captain Aceveda works with Lowe on the case of a stolen bicycle.
Lex recovers his long-lost brother Lucas and uses him in a ploy to buy out his father's share of the company. But it soon becomes clear that Lucas isn't to be trusted, and Lex soon finds himself ousted from his own company.
When an old girlfriend of Jim's comes to dinner, she accidentally reveals things to Cheryl that Jim wanted kept secret about them.
Daphne attempts to throw a dinner party, with a reclusive artist as the guest of honor, but fails to escape the Crane family curse which always shows up at such events.
Buffy accepts an invitation to dinner from Principal Wood, and the secrets of his past are revealed. Xander impresses a beautiful girl with his knowledge of rope, and she seems to be interested in tying him up. Meanwhile, the First contacts Andrew in another attempt to destroy the Potentials, and Giles finds himself tongue-tied with the new Potential, Chao-Ahn.
The detectives investigate the murder of a gay man who gave room and board to Latino parolees in exchange for sex; McDowell and Ortiz search for clues when a community activist is stabbed to death.
Paul and Cate force Rory to read "To Kill a Mockingbird" for a book report instead of watching the movie. Bridget pretends to pine over Ben going off to college, while Kerry covers for her. In reality, Bridget is in a great mood and has been calling and messaging Ben at college in Ohio and thinks she's in love with him. Paul had discouraged any further relations with Ben because he was too old for Bridget. Kerry covers for her sister because Bridget keeps throwing a guilt trip on her for kissing Kyle.
Nikki buys a love potion hoping to get the professor to fall in love with her. She tests it out on Kim, Stevie, and T. Kim and T fall for each other and Stevie falls for herself. The professor mistakenly ends up falling for Andell, who falls for Woody.
When Dylan is invited to the launch of the first Commonwealth ship made in years, you can tell something will go wrong. As the ship explodes sabotage is suspected. As Dylan and the crew try to find the culprit, they encounter many different suspects while being attacked a violent pride. Can Dylan find the culprit before the Maru is next
A witness for an up coming case is found murdered. Jordan is sure there is a dirty cop involved in the permanent silencing of this witness. Meanwhile Dr. Macy and Dr. Winslow head an investigation of their own.
A fugitive geneticist and four of his creations search for others of their kind while attempting to stay a step ahead of a morally ambiguous government agent.
Tired of being labeled the evil witch around the house, Debra convinces Ray that it's his turn to discipline the kids. While leaving to take Ally to a Frontier Girls meeting, Debra tells Ray that he must force the twins to clean up their room or they can't go out and play. Reluctant at first to spoil their fun, Raymond starts to tire of their devilish antics and winds up going overboard with the boys' punishment. Meanwhile, Frank proclaims himself a model disciplinarian, only to learn that despite his scare tactics, Ray and Robert broke plenty of rules around the house.
When traveling psychologist Dr. Gretchen Trott comes back into town, Andy is forced to confront his potentially romantic feelings for her. In other romantic entanglements, Edna and Irv have difficulty adjusting to life after his heart attack scare; Harold and his wife Rose have it out after they attend couples therapy and she suggests that he's lost that lovin' feeling; and Ephram asks Laynie out on their first date, in part to show Amy that he's moving on with his life.