The Best Episodes Written By Chip Johannessen

With only four hours left, a rogue Jack Bauer stops at nothing to determine who is behind the day's most devastating events, and he uncovers an unexpected lead.

Max's expertise is needed for a rescue mission. Carrie notices something suspicious on the flight manifest. G'ulom launches a manhunt for Haqqani.

Saul begs Tasneem for any intel she can get on where Jalal might be hiding. An unlikely ally helps Carrie find a lead on the rumored Kremlin spy.

Val wants to move back to Buffalo, but her mother has checked into a mental facility and cannot care for her. Brandon explains Valerie's situation to Steve and asks him to give her another chance. A pool hall acquaintance supplies Dylan with drugs. Brandon behaves coldly toward Valerie after she skips a party to go to Dylan's house. She reveals the gravity of Dylan's situation and pleads with Brandon for help. Dylan finds his gun and points it at brats who vandalize his house on Halloween. He shoots up his living room. Brandon confiscates Dylan's gun, ignoring his threats of legal action. After Dylan passes out, he stays to watch over him. Ray reacts angrily after seeing Griffin kiss Donna at a Halloween party. Donna finally tells Griffin about Ray; he responds rudely and gets slapped. Ray agrees to respect Donna's decision to remain a virgin. Andrea hestitates to take Hannah to a Día de los Muertos ceremony. She enjoys the experience, but expresses reservations when J

Dylan asks Brandon to join him on a motorcycle road trip before he begins his probation and loses his driver's license. They constantly argue about Kelly and nearly call off the trip. They are caught going to the bathroom on a Native American burial ground, and must make amends by digging a hole for a special ceremony. The Native American sheriff invites Brandon and Dylan to join him in a sweat lodge, where they learn valuable lessons. Jonesy calls Dylan and tells him that he has found Kevin and Suzanne. Kelly and Valerie attend a psychology seminar conducted by Professor Patrick Finley. Val laughs off the philosophies and decides to leave. Kelly takes the professor's words to heart because of her experience with the fire. Steve is still bitter about being cut out of the Peach Pit After Dark. Rush apologizes for being insensitive to his feelings. Music: ""I Wonder Wh

President Warner arrives in Afghanistan to make an announcement to the troops — and the world. Samira gets an upsetting visit from her brother-in-law.

Steve becomes friends with a guy in detention through their interest in cars. Steve and Brandon win a lot of money betting on Joe in a car race, but Dylan warns that the whole thing may be a scam. Steve and Brandon agree to bankroll Joe in a high-stakes race against drug dealer Frank Padilla. Brandon realizes that their opponent may be the guy who ran over Andrea. While Brandon contacts the police, Steve tries to stall by insisting that he be allowed to race Padilla. The two get into an argument and agree to a deadly game of ""chicken,"" but Dylan comes between them. Andrea identifies Padilla as the hit-and-run driver. Brenda and Kelly agree to a double-date with two guys from Princeton, only to find that they are geeks from the Princeton School in Encino. Donna takes over David's radio show while he tries to catch up on his studies in the hopes of graduating early.

Iris flies in from Hawaii, and Dylan and Jack try to soften her up to convince her to approve the dissolution of the trust. She is leery of Jack's motives, but elects not to stand in their way. Jack makes a clandestine phone call and promises someone that he will get the money. Brenda mopes around in her room and discards all mementos of Dylan. A visit from Iris convinces her to get past her pain, and she talks to Kelly at school. Steve helps David get a meeting with a record company. The record company executive threatens to call off the deal unless David fires Steve, and he agrees. Andrea is hesitant to attend a tea for future Yale students. Music: ""Losing My Religion"" by R.E.M.; ""Kansas City"" by Wilbert Harrison (#1, 1959); ""Action Speaks Louder Than Words"" by Tara Kemp (from the 90210 soundtrack); ""So You Want to Be a Rock 'N' Roll Star"" by

Steve tells Laura that he cannot see her again because he has a girlfriend. During the activities for Take Back the Night Week, she concludes that she was a victim of date rape and plans to identify Steve at a campus rally. Kelly warns Steve, who adamantly proclaims his innocence. Steve confesses his indiscretion to Celeste, who breaks up with him. Before Laura can speak at the rally, Kelly steps to the microphone. She shares that she was nearly a victim of rape, then pointedly adds that there were other times when she regretted sleeping with a guy, but had consented at the time. She identifies Steve as a hero for saving her from the rapist at the Halloween party. Steve apologizes for using Laura, who admits that she had done nothing to discourage him. Lucinda insists on openly flirting with Brandon, who wants nothing to do with her. D'Shawn threatens to tell Professor Randall that Brandon is sleeping with his wife unless he takes his midterm for him. Lucinda encourages Brandon to take

Brandon and Kelly attend a weekend retreat. The chancellor's teenage daughter Clare develops a crush on Brandon. Brandon confesses his affair with Lucinda to Kelly. Brandon and Kelly realize they must discontinue the charade after they share a passionate kiss. Lucinda invites Dylan to her house to view her film, and makes a pass at him. Donna and Brenda befriend a stray dog, which they name Rocky. They learn that the animal escaped from the university's research lab, and are afraid to return him. Brenda takes an interest in an animal rights group that is protesting the lab. Andrea, who works at the facility, argues that the lab is researching potential medical breakthroughs. She returns the dog safely to Donna. Andrea is furious when Steve lets Muntz use her room for a rendezvous with his girlfriend. She fears that the resident advisor will kick her out, but Steve makes amends by sleeping with the woman. Music: ""Get Closer"" by Seals and Crofts (#6, 1976)

Donna plans to take a semester off to become a debutante in Houston. Kelly realizes that Donna is hiding behind her mother to shield herself from David. Brandon tries to tell the drunken Dylan about Kelly and him, but chickens out. Nat inadvertently reveals the truth to Dylan. He shows up at an affair organized by Felice and gets into a scuffle with Brandon. Kelly goes to Dylan's house to talk with him; she finds him with a bimbo. Donna reconsiders becoming a debutante after her mother makes a big deal about her dancing with D'Shawn. Dylan apologizes to her and agrees to join her at registration, but never shows up. Andrea balks at entrusting Hannah to the campus day care center. Clare enrolls at California University (as a sophomore because of AP credit). Josh talks Brandon into being his running mate in the student body elections. Music: ""Faded Love,"" performed by band; ""Make It Right"" by Lisa Stansfield (from the 90210: The College Years soundtrack)

Jim and Cindy leave for Hong Kong. Kelly wants to continue her relationship with Brandon, but he cannot get over the rejected marriage proposal. Steve and Donna head to Palm Springs for an Alpha/KEG convention. A contrite Ray agrees to accompany Donna, who is making a speech at the event. He quickly becomes angry and possessive. Rush tries to set up Steve with a business associate's daughter. Steve is more interested in the Cadillac-driving ""goddess"" he keeps encountering. Brandon and Valerie decide to head to Palm Springs to avoid the caravan of potential buyers who have overrun the house. Brandon goes on a drinking binge and finds himself tempted by Valerie. He has a hallucination in which his parents appear and express their disappointment. Kelly postpones her trip to the convention to spend the day with Allison, but is very secretive. David and Clare see them together and get the wrong idea. Allison admits her love for Kelly, who is not interested.

Carrie tells the helicopter mechanic what was on the black box. Yevgeny offers Carrie a deal. Jalal forces one of his men to accept a horrific mission.

Dexter realizes that he and Lumen are being lured into a trap and risks everything to escape; Quinn needs help that only Dexter can provide.

Carrie and Quinn organize a last-ditch operation. Saul extracts a painful promise from Carrie. Lockhart and Martha stall the ISI.

Carrie and Quinn make a discovery while Keane makes a decision and Max finds trouble.

Dexter must make a choice; Quinn stirs up trouble for Dexter but supports Deb.

Stu and Drew decide to play golf on a course that's impossible to win. Angelica says that if they win they get ice cream, so in the end the Rugrats help them win and they get ice cream after all.

With only seven hours left in the series' final harrowing day, Jack Bauer sets out to avenge the tragic life-changing events that he has endured. As things become even more personal for Jack, he heads to CTU for an intense meeting after learning of a devastating development. Meanwhile, on the verge of achieving peace on a scale that has eluded the world for generations, President Taylor becomes deeply conflicted when former President Logan sits down at the bargaining table.

While Carrie is near catatonic and confined to bed, Saul investigates the unsettling implications of her timeline; Walker secures a perch for his mission; Brody makes his final preparations for the Vice President's policy summit at the State Department.

The parking ticket leads Carrie to a series of transactions. O'Keefe loses control of the situation at the compound, and an outsider spreads a rumor.

Wellington puts pressure on the Russian ambassador. Maggie gives Carrie an ultimatum. Saul and Carrie take extreme steps to get Dante to talk.

Sen. Paley investigates why Saul went to Moscow. Carrie's team launches the operation to exfiltrate Simone. Keane's recent decision backfires.

Carrie and Yevgeny follow a lead on Max's whereabouts. To try to delay Haqqani's trial, Saul makes an appeal to Tasneem and her father.

In the wake of the explosion, Saul finds Carrie hospitalized and manic, but realizes her chaotic theories have merit; before his congressional campaign begins, Brody takes his family on a weekend trip to Gettysburg, where he retrieves an important item.