Episode 13 - 1:00 - 2:00 a.m.
As Jack flies Nina back to Los Angeles, she unleashes a computer virus she planted at the CTU; and Sherry confronts Milliken about his involvement in the hit-and-run murder.

As the CTU staff learns Amador has ambushed and killed their Delta team, Chase and Jack split up in the woods to chase Nina. As Chase follows a light, however, Nina steps up behind him, holds a gun to his back, and forces him to radio Jack, saying everythingís OK. Then, as Nina starts to march Chase off, Jack steps out and punches Nina, then asks Chase to leave him alone with her. Jack intends to kill Nina, but she convinces him to let her live, saying she knows Amador is headed for Los Angeles, and knows his contact there. AfterJack calls Tony to say heís bringing Nina back, Tony confronts Chloe about the baby sheís watching. Once again she refuses to say whose baby it is, and says he can call the police if he wants to. Meanwhile Palmer gets a call from Sherry, who reports that someone got to Kevin Kelly before she could convince him to speak up about Millikenís involvement in the 12-year-old hit-and-run murder of Kellyís daughter. Sherry says sheís on her ! way to talk to Julia Milliken, and Palmer warns her not to confront Milliken himself, which Sherry promises not to do. A few minutes later Jack, Nina, and Chase board a CTU plane for Los AngelesÖ while Amador, on his own private jet, calls his L.A. contact, Marcus Alvers, to say heíll be there in an hour with the virus.

About the same time, Sherry calls Julia Milliken, who gives her instructions for getting through the security gate at the Milliken estate. Then Julia goes to Millikenís bedroom and tucks him in, saying sheís going downstairs to make some tea. Back on the CTU plane Nina tells Jack that Amadorís L.A. contact is named ìAlvers,î so Jack relays this to Tony, who assigns his staff to investigate. After the call Jack tries to mend fences with Chase, whoís still cool toward him but finally does agree that their real goal is to press Nina and find Amador and the virus. A few minutes later, at the CTU, Dalton and Adam pinpoint Marcus Alversí full name and history, and set to work tracking him down. Tony radios Jack, who tells Nina what theyíve learned. To Jackís surprise, Nina provides more details about Alvers, revealing that she knew the basics already but just wanted to see how fast the CTU could dig up the information. Finally Nina gives Jack a phone number to rea! ch Alvers, but when Jack dials it and punches in a string of numbers she provides, the line goes dead and Nina smiles: the CTU computer systems start to crash, and Nina tells Jack that the call he just made triggered a worm she planted long ago at the CTU, which will gradually jam its entire network.

As the CTU staff rushes to fight the worm, Jack calls Tony to report what Nina has done. Jack tells Tony to put Chloe on the problem, but Tony says he canít because the LAPD has just arrived to arrest her. Chase learns Nina has a code that can cancel the virus, but she refuses to provide it unless they turn the plane around and let her go in Mexico. Jack refuses, saying the CTU staff might be able to stop the virus on their own. Back at the CTU Chappelle gives Chloe one more chance to tell him who the baby belongs to, but Tony intervenes and puts Chloe back to work fighting the computer virus. Meanwhile Sherry arrives at the Milliken estate, tells Julia about Millikenís involvement in the hit-and-run murder, and promises that if Julia helps her send Milliken to prison, Julia will get all his money. Sherry asks Julia to find out all the phone calls Milliken made from his cell phone in the last three hours, but Julia says the phone is with Milliken in his bedr! oom. Julia says sheís afraid to try to get itÖ but Sherry says sheís not, and a few moments later she tiptoes into Millikenís room. He seems to be asleep, but as she picks up the phone and leaves, he stirs.

A bit later, after Sherry calls a technical contact to report the numbers Alan has called recently, she starts to leave, but then Milliken appears and accuses Julia of stealing his phone. Sherry admits that she did it and boldly asks him what happened to Kevin Kelly (the man who disappeared from the trailer park a bit earlierÖ and who can incriminate Milliken in the murder of Kellyís daughter). Milliken doesnít answer her, so Sherry starts to leave, but Milliken asks her to stay and sit down. Back on the plane Jack calls Tony again and learns the computer worm is just three minutes from shutting down the entire CTU system. Jack tells Nina sheíll have to tell him now how to stop it, or it will be too late and sheíll have no more leverage. He puts her on the phone with Chloe, but instead of stopping the worm, Nina gives Chloe a code that slows it down, which buys them another 20 minutes to negotiate. Then Nina demands again to be returned to Mexico and freedÖ ! but again, Jack refuses.

Later, as the plane begins its approach into L.A., Jack insists Nina give him the kill code for the virus. She refuses, and suddenly the plane reverses its descent and begins to turn around. Jack asks whatís going on, and the pilot reports Tony ordered him to give in to Ninaís demands so sheíll provide the kill code. Jack pulls a gun on the pilot and orders him to land anyway, then calls Tony. As they argue, Chloe and Dalton finally get the virus under control, and within moments they regain control of the CTU computers. Jack reports this to Nina and the plane finally comes in for its landing. Back at the CTU Chappelle again confronts Chloe while Child Protective Services workers take the baby into custody. Finally Chloe tells both Chappelle and Kim that the baby is Chaseís. Meanwhile, at the Milliken estate, Sherry gets into a heated argument with Milliken, who suddenly starts to wheeze and clutch at his chest. He asks Julia to fetch his pills, but Sherry s! tops her, indicating that they should just let Milliken die.
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Episode 14 -2:00 - 3:00 a.m.
Jack returns Nina to the CTU, where Tony questions her; Jack is questioned by Internal Affairs; Kim confronts Chase about the baby; and Sherry tries to cover up her involvement after Millikenís death is discovered.

After Milliken dies, Sherry convinces Julia to go to bed and ìdiscoverî the body later, telling no one that they were present when he was stricken. Meanwhile, after the CTU plane lands, Jack ushers Nina off while Chase gets a call from Chloe, alerting him that she has told Tony the baby is Chaseís. Meanwhile Michael Amador meets his contact, Marcus Alvers, in the back room of a seedy restaurant, where Alvers removes the virus from its canister and begins dividing it among 12 small vials. A few minutes later, at the CTU, security officers whisk Nina away for questioning while Chappelle orders Jack to the medical department to have his drug withdrawal symptoms checked. Then, as Nina is walked through the building, Kim sees her. Kim stops Nina and her guards, then punches Nina in the face. Then Jack enters, sees Kim crying, and sweeps her into a hug before Kim can do anything else.

After Kim calms down, Jack tells her heís going to get his drug problem evaluated, and Kim watches Chase enter. Meanwhile Sherry arrives at Palmerís office and tells him that she did finally take his advice, and instead of going to the Milliken estate, pulled her car off the road, made some phone calls, and then just came back to the office. At the CTU Chase goes with Jack to the clinic, admits to Jack that he has a baby daughter, and promises ó at Jackís insistence ó to explain everything to Kim right away. About the same time, Kim apologizes to Tony for losing her cool and punching Nina, but Tony assures her that if she hadnít done it, he might have. After Tony leaves, Chase joins Kim and explains that he didnít know his previous relationship had produced a child until the mother dropped her off a few weeks ago, saying she could no longer care for the baby. He says Chloe has been helping him keep the secret because theyíre old friends. Meanwhile Michelle a! nd Dalton set up recording equipment in an observation room while Tony goes into the interrogation room next door and begins questioning Nina about Marcus Alvers. Nina tries to distract Tony with references to their past relationship, but he does manage to learn that Nina and Alvers had an intimate relationship.

At the Milliken estate a housekeeper finally finds Millikenís body and summons Julia, who doesnít let on that she already knew Milliken was dead. At the CTU Jack heads for the interrogation room, but Chappelle stops him and orders him to talk first with Mike Lafabe, an Internal Affairs agent. In the interrogation room Nina points out that Tonyís neck wound is starting to bleed, and when he goes out to the hall so Michelle can tend to it, he tells her to bring in their new torture expert, Peter Johnson. At the same time, Kim asks Chase for more details about his relationship with the babyís mother, while he finally retrieves the child from another agent, Marcy, whoís been watching her. Then, finally, Johnson joins Tony and Nina in the interrogation room and readies his instruments.

Back at the restaurant Alvers calls another contact and promises, in Russian, to meet him soon... and Amador agrees, as long as theyíll have time to leave the country before the virus is released. At the CTU Jack explains to Lafabe that he started using heroin before he re-established contact with the Salazars so he could be a believable junkie by the time he met up with them. Lafabe doesnít believe it, but Chappelle supports Jack and Jack insists he has nothing to hide. Meanwhile, at Palmerís office, Wayne learns from a newscast that Milliken is dead, and asks Palmer where Sherry was when the death occurred. Palmer assures him Sherry didnít go to the Milliken estate, but then confronts Sherry and demands the truth. At first Sherry denies she was at the estate, but finally tells Palmer that Milliken had a heart attack while arguing with her and Julia. She denies, however, that she did anything to cause it. Back at the CTU Chase tells Jack that Johnson is wor! king on Nina now, but Jack says thatís not a good idea because he doesnít know her well enough, and she could take advantage of him. Meanwhile, in the interrogation room, as Johnson presses a blade to Ninaís neck and Tony asks how much more she can take, she jerks her neck back, forcing Johnsonís blade into an artery in her neck. As she starts to bleed profusely, Tony calls for help, then unlatches her from her chair.

At his office Palmer tells Wayne that Sherry was at the Milliken estate when Milliken died, but claims she didnít have anything to do with the death. Wayne is skeptical, however, and calls Julia, who finally breaks down and says Sherry prevented her from giving Milliken medicine that could have saved him. Meanwhile, at the CTU clinic, a doctor prepares to operate on Nina and orders a medic to start an anesthesia drip. The medic does, but doesnít see Nina pinch the tube to prevent the drug from entering her veins. At the same time Tony reports Ninaís actions to Jack, and before he has time to react, an alarm rings out, alerting them that Nina has escaped. Chappelle orders the building locked down, and as everyone runs off to look for Nina, Kim sees a dead guard in a corridor, pulls out her gun, and comes face to face with Nina, who also draws a gun on Kim. For a moment thereís a tense standoff, but then Jack appears, shoots Nina in the head, and grabs Kim in a protective embrace.
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Episode 15 3:00 A.M. - 4:00 A.M.
Jack finally catches Michael Amador, but only after Marcus Alvers has escaped with the virus and prepares to release it at a large hotel; and the police learn Sherry was at the Milliken mansion when Milliken died.

In the aftermath of Ninaís death, Jack tells Chappelle that he shot her in self-defense, but Chappelle says heíll need to make sure of that. At the seedy nightspot Amador and Alvers welcome their client, Saunders, who says he chose a rather limited first target for the virus because he just wants to send a message. Back at the CTU Tony tells the other agents about Ninaís death, but says he may have another lead on finding AlversÖ and then displays a photo of a bio-warfare detonator which heís just learned was stolen three weeks ago in the Ukraine, and which he says Amador and Alvers may be attaching to vials of the virus. At the nightclub Alvers demonstrates the detonatorís trigger mechanism for Saunders, who approves. Saunders also scolds Amador for being duped by Jack in Mexico. Amador says he still got his job done, though, and reminds Saunders that he and Alvers havenít been paid yet. Saunders gives him an authorization code for a Swiss bank account, but! when Amador checks the account on his computer, he finds only half the promised balance. Saunders says theyíll get the rest after Alvers releases the virus at the hotel theyíve chosen. Meanwhile Chloe, monitoring various data streams, sees someone access the Swiss account, which is registered to one of Amadorís aliases. Tony orders Kim to trace the computer accessing the account, and Adam says they can find Amadorís location in less than ten minutes. At the same time Jack tells Chappelle how he came to shoot Nina, but because Jack blocked security cameras during the shooting, Chappelle doubts that it was entirely self-defense. Before they can argue, however, Chase tells them about the lead on Amadorís location, and Chappelle finally agrees to let Jack go there with Chase and a SWAT team.

At Palmerís district offices, Wayne confronts Sherry and tells her that Julia told him how she withheld medication from Milliken as he was dying. Sherry insists she was just cleaning up the problem like Palmer wanted her to. Wayne says sheís insane and Palmer will have to know the truth, but Sherry says they canít tell him, and Wayne realizes sheís right. Meanwhile a detective, Mike Norris, questions Julia about Millikenís death. Julia is surprised when Norris tells her that the housekeeper saw a Mercedes driving away from the house just before she found Millikenís body, but Julia says she doesnít know whose car it might have been. Norris also tells Julia that the houseís security cameras were shut down about an hour before Millikenís death, but again Julia says she doesnít know how that came to be. Back at the CTU Kim forwards a grid showing Amadorís location to Jack and Chase in Jackís SUV. Meanwhile Alvers arrives at the St. George Hotel, goes into a gues! t room and takes out a folded garment, a tool box, and the vial with the detonating device, which he tests before starting to change clothes.

At Palmerís office Wayne again offers to resign if he has become a liability to Palmerís presidency, but Palmer still wonít hear of it, saying he trusts Wayne more than he could anyone else. At the same time, Jack and Chase arrive in Chinatown and take command of a SWAT team getting into position outside the seedy nightclub. Inside, however, Amador sees the men on a security screenÖ just as Jack, outside, notices a motion detector and realizes that Amador knows theyíre there. A moment later Amador races out of the building, shooting at the SWAT team, and darts across the alley. Jack chases and corners him, and they scuffle, but Jack finally pins Amador. As Chase calls in the capture, however, Amador says theyíre too late to prevent the virus from getting out, and Jack and Chase drag him back inside for questioning.

A few minutes later Jack readies a hot frying pan inside the nightclub, and asks Amador where the virus is, saying he can protect Amador if he talks. Amador refuses, noting that Jack hasnít even been able to protect his own family members lately. Finally Chase presses Amadorís hand into the hot frying pan, but Amador just passes out. Jack calls Tony and tells him theyíve got Amador, but the virus has already been passed on. Just then, however, Chloe, whoís been searching Amadorís computer, finds schematic drawings of the St. George Hotel. Jack says the hotel may be Alversí target, and Tony dispatches a team there. Tony also calls Craig Phillips, head of security at the St. George, and orders him to lock down the building immediately and start keeping an eye out for Alvers. After the call Tony prepares to head for the hotel with the rest of the CTU team, but Michelle sees that heís still weak from his earlier wound, and talks him into staying behind while she! goes instead. Finally, at the hotel, Alvers, now dressed in a maintenance uniform, leaves his room and heads out into a corridor.

A bit later, at Palmerís office, Sherry gets a call from Detective Norris, who says Julia Milliken says Sherry was with her when Milliken died. Sherry denies this, and says Palmer will confirm sheís been at his office all evening. At the hotel Phillips sees a maintenance man (Alvers) he doesnít recognize, and asks his assistant to check him out. Then one of the CTU agents, stationed outside, shows Michelle a photo of Alvers entering the hotel, which was taken by the hotel security cameras. Michelle realizes itís too dangerous to order anyone from her team to go inside, so she decides to go herself, As she heads for the door, Gael and three other agents decide to brave the premises too. A few moments later, inside, Phillips tells Michelle that he may know where Alvers is. Meanwhile, in the hotelís ventilation room, Alvers places the virus vial under the systemís main fan, sets a timer, and leaves. As heís passing through a utility room, however, Michelle conf! ronts him and manages to cuff him to a pipe. Then she asks where the virus is, noting that if he doesnít tell her, heíll die along with everyone else. Finally he says itís in the central heating unit, and after she radios this to Gael, he races to the ventilation room and finds the vial near the fan. Just as he reaches for it, the timer ticks down, thereís a small explosion, and a fine white powder is blown all over Gaelís face and up into the fan, where it starts to spread throughout the hotel.