Kennedy, a potential Slayer, takes Willow on a date, which is interrupted when Willow finds herself transformed into Warren. The other Potentials go on a retreat with Giles, who the gang realize may have been replaced by the First. Spike's chip is having agonizing malfunctions, and he and Buffy return to the Initiative to search for a fix.
Lilith comes to Seattle, and tells Frasier that she would like to have another child. She wants him to father the child through artificial insemination so that Frederick could have a full-sibling. Frasier is hesitant to go along with this, so Lilith tries to manipulate him by bringing up touching stories from Frederick's childhood.
In hopes of freeing Clark from jail, Sipowicz searches for drug dealers who might have a connection to Laughlin; McDowell and Ortiz investigate a series of rapes in a park involving a perpetrator who forced his victims' boyfriends to watch.
Nick meets Sam at a gala in Burton's honor. Sam who is a transvestite tries to get custody of lover's son. Also Nick finds out Mary and Shannon have been living with his father.
As Kelly's 18th birthday approaches, she repeatedly whines about the fact that she doesn't want to have a party. She feels that she would just end up being ignored on what is supposed to be her day. The family decides to go to Las Vegas for the weekend, and Ozzy will play a show. Sharon insists that the whole thing will be a low-key affair. Kelly becomes upset when Jack decides to bring eight friends along on the trip. Jack and company wind up sitting around the hotel room watching Teletubbies because they can't get away from security. Jack complains to Sharon about how unfair this is. Kelly and Sarah get very drunk, and Sarah does a striptease atop a table while Sharon, Ozzy and other adults are trying to have dinner. Jack and his friends eventually make it downstairs. Kelly gets very upset because she thinks Jack is stealing her thunder. Kelly and Sarah have an altercation with some girls who are hanging out with Jack and Dill, as one of them apparently looks at Kelly the w
Natalie wants to spend more quality time with Flex but he wants to have time for himself to watch his sports games, so she starts to spend time with Duane instead. When Flex finds out he becomes jealous. Meanwhile at a sleepover Breanna discovers that Spirit has kissed Arnaz before, causing a problem in their friendship.
On a church ski trip chaperoned by perpetual party pooper Dr. Abbott, Amy and Colin share their first kiss since the surgery. Ephram finds himself intrigued by Colin's younger sister, Laynie (guest star Nora Zehetner), who has recently returned home from boarding school. Also, Bright attempts to get to the next base with his girlfriend (guest star Devon Reilly). Meanwhile, Andy hesitantly agrees to attend a singles mixer with the recently divorced Reverend Keyes (guest star Tim Dekay).
A nude man is found tied to his bed, having suffocated on a rag stuffed in his mouth while he was being sexually assaulted. Meanwhile, while investigating the murder of a crematorium owner, the CSIs discover dozens of bodies that were never cremated.
Spencer thinks that he has gotten a girl pregant and Dee Dee and Mona force him to get an AIDS test.
Flex's little sister, Bernadette has come to Baltimore to announce to her brother that she has given up her sucessful career in law to become a fashion model. Flex tries to figure out how to break the news to their dad. Meanwhile when Breanna gets a baby from her Home Economics class Josh and Arnaz become competitive to be it's father.
Maya befriends a fellow single mother, a janitor at the law firm's building. They quickly make a connection, but Joan finds the woman's attitude irritating; and fears that her example could negatively impact Maya's relationship with Darnell. Meanwhile, William pretends to work at Lynn's office because he misses the camaraderie of a workplace; and Lynn tries to scam her co-workers out of money by pretending it's her birthday.
The morgue staff gathers to attempt to try and solve a case from 1964. With each of the staff members assuming a role in the case, with Max leading the way. Will they be able to find a killer from so long ago?
"Okay, that did not work," Trance says. "Let's try again." Trance tries to figure out how to help the crew survive a deadly intruder.
Abe procrastinates planning his promposal to Cleo by trying to find Joan a date, Gandhi gets a makeover from JFK, and Scudworth rehashes an old rivalry with John Stamos.
Eric tries to help Chandler after the young minister learns that his father is dying of lung cancer, but Chandler rejects Eric's aid and pushes him away. Lucy accepts a date with Chandler's chain-smoking tattooed brother Sid in order to make Kevin jealous enough to propose to her. Elsewhere, Annie is shocked when she finds a pack of cigarettes in Simon's bedroom. Lastly, Ruthie's friend Peter begs her to lie and not tell his mother that he smokes.
Ellenor continues her desperate attempt to stop the execution of a mentally ill woman Denise Freeman on death row. The firm is torn over a controversial settlement in their case against an alcohol company.
Nikki's efforts to get a loan are sidetracked when she and Professor Oglevee are taken hostage during a bank heist staged by a little person.
The six-year on-again, off-again relationship between Robert and Amy is reaching a pivotal moment. Robert wants to propose to Amy, but there's one small formality the hopeful groom-to-be must take care of first: asking Amy's devout churchgoing parents for their daughter's hand in marriage.
Doug and Carrie photos get mixed up with another couples. When Doug and Carrie look at the other couples photos, they find out that their lives aren't as good as the others, so they try to do what are seen in the photos. Arthur's new cellphone is in no use when no one calls him.
As Faith waits for Emily to awaken from her coma, she blames everyone but her daughter for the overdose and reflects on the substance abuse problems in her family; after Cruz's sister is brought into the hospital with an overdose, Cruz gets Sully, Ty and Bosco to look the other way on any possession charges and sets off with Bosco to find the location of her supplier's meth lab, where they end up in an inferno when the dealer sets the house on fire; Kim is reluctant to give a statement in Carlos's case because she's feeling pressured to lie to save his career.