Andy finds his once private office is now to be shared the new Technical Illustrator to Andy's writings, a very timid and somewhat peculiar Byron.
Supermodel Claudia Schiffer guest stars as Gretchen, a drop-dead gorgeous new lawyer in Greg's office about whom he's having sexual fantasies. Guilt-ridden over his inappropriate thoughts—especially since it's his ""four-and-a-half-year anniversary"" with Dharma—Greg tries desperately to get Gretchen off his mind, to no avail.
When Carter is unexpectedly called to a late-night meeting, Charlie's left in charge of entertaining Spencer, a 16-year-old boy whom Carter sponsors through the ""Big Brother"" program. Having already had a date planned, Charlie has no choice but to bring Spencer along for the ride. Meanwhile, the Mayor is racked with guilt which is causing him insomnia.
After handing out photos of all the assassins, Jack and Mason discover that one of Palmer's campaign staff is in a romantic relationship with Alexis Drazen. Teri and Kim are attacked in the safehouse. Keith confronts Carl Webb about the cover-up.
A flower that comes from a reopened "Level Three" of the fertilizer plant brings strange reactions from several people, including Jonathan, Lana, and Pete.
Following the murder of Terry, the Internal Affairs Division begins an investigation into his death, while Aceveda begins his own. Meanwhile, Dutch and Claudette investigate the shooting of a churro vendor that ends in the Barn's detectives busting up a gang initiation.
The squad investigates the murder of a young Chinese girl along with an alleged rape case. Irvin learns his father is dying. Clark tries to find a foster home for James Kilik.
Ozzy makes the rounds to promote the release of his new album, Down to Earth. He reluctantly takes a limousine (which he hates) to Tower Records for an in-store appearance. Kelly attends the event and is surprised when several fans recognize her. Ozzy and Sharon are later guests on Loveline. Jack listens to the show and is horrified when his parents discuss their sex life. Jack goes away on a camping trip with his school while Ozzy, Sharon and Kelly are in New York. Ozzy appears on Late Night With Conan O'Brien and MTV's TRL, where Kelly joins him for a promo. Jack hates the camp, and gets in trouble for throwing rocks at other campers and arguing with the counselors. Sharon tries to help Kelly's best friend, Robert, shop for a gift for her 17th birthday. The family throws a big party in Kelly's honor. She goes out with her friends after the party and winds up getting a tattoo, which she unsuccessfully tries to hide from Sharon.
While trying to come up with a quote for the yearbook, the gang recalls how they met for the first time. They go through the times when they each met each other, no matter how embarrassing or stupid they were. They also try to work out a saying to put under each of their pictures. Kelso finally comes up with the perfect quote for them all, "It's been a long, strange journey...in Forman's basement!" The gang also realizes how strong their friendship is.
Doug starts to dream more seriously about running his own sandwich shop now that his Uncle Stu has generously offered him a large sum of money to see him realize his dream. However, Carrie has major reservations about this, knowing that Doug's gifts are not in running a business. Not to mention that Danny, Stu's son, is very jealous and angry that his own father would back Doug's business venture, but not his own.
One of America’s finest abandons her post in Afghanistan and is later found dead in Boston. Jordan is paired with an investigator from the Marines, to investigate the case. Elsewhere Dr. Macy is in the middle of a turn war…between pimps.
Ray has been arming himself with knowledge and has been preparing to speak with Ally about the facts of life only to find that Ally's interest has changed from where babies come from to the meaning of life.
Twelve men and women are called for jury service in the retrial of a man accused of a triple murder after the High Court overturns the original verdict.
Kim, Stevie and T take an I.Q. test as part of a contest to win a car, but after a mixup with the scores, Kim is convinced she is a genius while Stevie's confidence is shattered.
Toni plans to open her own real estate office, but Joan's efforts to encourage her to be practical wind up putting a damper on her enthusiasm. Toni accuses Joan of failing to support her dreams, although Joan insists that she just doesn't want her friend to get hurt. Meanwhile, Swedelson, disappointed by William's recent performance at work, encourages him to remedy what ails him by going on a ""booty call.""
Unable to find a full-time teaching job, Peggy pretends to be a nun to land a position at a Catholic school, ending her budding career at Strickland Propane.
While the FBI detains and questions Sydney about her past and possible ties to a mysterious Rambaldi doomsday prophecy, Vaughn and Jack must race to free her and find a way to clear her name before her cover is blown and SD-6 is made aware of the situation. Once the rescue op has been launched, in her quest to prove her innocence, Sydney shocks even her usually unflappable father when she makes a chilling discovery that may unravel the mystery of the 500-year-old prophecy – she finds proof that Rambaldi's writings may hold more truth about an alleged weapon of mass destruction - and the fate of her own family.
After a car accident, Reyes finds herself in a very gray area, while Doggett desperately denies doctors' diagnoses about his partner, who witnesses a strange disappearance.