An unlikely party comes to the aid of the administration as it seeks to discover the party responsible for nuclear testing in the Indian Ocean; Will is unhappy, but his boss doesn't seem to mind, when a request to beef up the Vice President's issue profile results in Toby's handing him boring, low-level minutae; Josh dismisses a NASA proposal for a manned Mars mission until an agency staffer shows him the error of his ways; a conservative talk show host makes a pathetic attempt to bait C.J. into appearing on his show.
A city employee's clerical error sets in motion a chain of events which culminates in a fatal shooting at City Hall and a secret Federal court proceeding with sinister implications.
Dave unveils the Love Contract and offers up the True Hollywood Story of actor Charlie Murphy, along with musical guest Ludacris.
After countless times of babysitting Deacon and Kelly's children, Doug and Carrie feel that Deacon and Kelly should return the favor and babysit Arthur every once in a while. Deacon and Kelly decide to take Arthur out to dinner so Doug and Carrie can be alone, but they ignore a warning about Arthur's reaction to spicy food.
Doug and Carrie run into Doug's ex-girlfriend Trish at an art gallery. Doug explains to his wife that Trish took their breakup pretty hard. So, against her husband's wishes, Carrie asks Trish out to lunch. At the restaurant, Carrie quickly realizes why Doug broke up with the woman in the first place – she's annoying and needy. Ready to break off their new friendship, Carrie's tune changes when she discovers Trish's employee discount at Saks Fifth Avenue. Meanwhile, Spence agrees to go out with a guy, even though he's not gay, just to boost his morale.
A World War II submarine sailor - the only man Angel ever turned into a vampire since regaining his soul - returns to seek his revenge.
Kelso is ecstatic when Brooke asks him to be involved in her doctor's meeting for their upcoming baby, but he runs into a problem when he can't find his van. Hyde is exactly the opposite of ecstatic when Jackie redecorates his room with bright colors and lights that looks like a girl's room. Eric and Donna also set out to discover (in Kelso's van) what Mount Hump is like. Red is also upset that Bob gave him shoes, until he reluctantly begins to like them.
Jack and Chase interrogate Nina, but the worm turns when she causes havoc with the CTU computer systems. Chappelle puts Chloe under guard when she refuses to answer questions about the baby, but is forced to release her when she is the only one who can deal with the crisis. Sherry takes her battle directly to Alan, forcing Julia to act as her accomplice.
Rory crosses paths with Jess in Stars Hollow. Luke's sister visits Stars Hollow and introduces her new boyfriend to her brother.
The team investigates when a Marine recruitment officer is found shot to death by a sniper with a grudge, who leaves a white feather behind.
Nick learns his unborn baby has Down Syndrome to learn more about it Nick helps Mark set up a trust fund so he won't lose his Social Security. Nick tells Lulu about Mark and that he took the case to understand more about Down Syndrome and help Lulu understand what maybe a head for their baby. Kate Shaw asks Jake to take an AIDS test because Kate wanted him to join a country club.
Aside from a love for hoops, it would seem that Lucas and Nathan are two young men with little in common, but they are bound by the dark secret that they share the same father. Nathan is the star of the high school basketball team and local town hero, while Lucas is the only child of a single working mom. Now the two boys' lives collide when a twist of fate puts Lucas on Nathan's team and the half-brothers compete, not only for control of the court, but also for the heart of Nathan's beautiful girlfriend Peyton.
J.D. believes he may have finally found a mentor in Dr. Kevin Casey, a surgeon with obsessive-compulsive disorder, and it turns out that Dr. Cox has always been jealous of the guy. Meanwhile, the Janitor and his new assistant help Kelso out with a garbage problem.
In need of a tutor to boost her grades, Bridget hires Jeremy, hoping to make her chance of getting into a good college better. Meanwhile, Kyle treats Kerry to an very un-corporate Valentine's Day celebration. Rory gets pointers about the perfect gift for his new girlfriend Missy. Jim sends C.J. on an errand to get a special drug in Canada.
Cheryl forbids Jim from throwing his cop friend Danny a bachelor party with beer and strippers. She fears that Danny will show up at his own wedding with a hangover – as Jim did at their wedding. Jim and his buddies decide to take Danny for a swim in bitter-cold Lake Michigan – forcing a hospital visit for Danny. The wedding morning, Danny stays in bed, moaning and groaning, and Cheryl frets, but the doctor assures everyone there's nothing wrong with him. Jim realizes Danny just has cold feet, so he tries to convince him to go through with his wedding to Laraine, a fellow cop.
The investigation into the death of a pregnant high school student exposes a long-held family secret, which precipitates yet another violent death and eventually the destruction of two families.
A man armed with a bomb walks into the station house and handcuffs himself to McDowell; unless the detectives release a Russian mobster from jail in one hour, the bomb will detonate.
Ozzy and Sharon fret about all of the time they must spend apart as she works on her talk show. One of Sharon's scheduled guests, rapper/actor DMX, runs late and is in danger of not making it to the show on time. He has a history of being late or skipping out on events, and Sharon finds the whole situation very amusing. Ozzy gives everyone who stops by the house a tour of his new home studio. He enjoys watching porn on the state-of-the-art TV. Ozzy also buys a new motorcycle, but isn't quite sure how to start it. Meanwhile, Jack and his friends find new and disgusting ways to entertain themselves.
Breanna, Arnaz, and Spirit plan to drive all the way to West Virginia to a Hip-Hop Palooza. Breanna tries to get Flex's permission to go there all by herself, but instead Flex decides to tag along and make it a memorable family memory for her. On the road Flex annoys them with road trip games and the kids quickly get bored. The car runs out of gas and Flex decides to go look for a gas station out alone while the kids are asleep. When Breanna, Spirit, and Arnaz wake up and discover Flex gone they think that he abondanded them. They are stranded on the road until Angie Stone pulls up with her limo and decides to give them a lift. Meanwhile at a restaurant Flex tries to contact the kids but fails. Eventually Breanna and Flex are reunited. Unfortunately the Hip-Hop Palooza gets canceled because of a heavy downpour but Breanna thanks Flex anyways for giving her a good family memory to reflect on. Also Duane and Candy try to go a whole entire weekend without sex to find out what they have in
Karen and Frank's affair continues behind the backs of Shelia and Lip. Shelia is concentrating on beating her phobea of open spaces, through a nurse that comes and visits her. Shelia goes shopping through a virtual reality machine but panics when she gets too near the doors. Ian's affair with Kash is ruined after security cameras are installed in the shop to stop shop lifting. Yvonne notices strange behaviour and comes to the correct conclusion. She tells Kash that she wants another baby and decides that Ian can stay on at the shop but his relationship with Kash is over. Lip discovers Karrens and frank's affair and goes crazy. He attacks his father.