Chloe gets word that local police found the abandoned van that Jack was in. Dina's body was inside. Michelle notifies the CTU staff that Marwan might be holding Jack.
Jack wakes up in the back of another van. He hears Marwan talking on the phone to Anderson. Anderson tells Marwan that the flight he was supposed to pilot has been grounded because of technical difficulties. Marwan warns him that their window of opportunity closes in an hour.
A mechanic informs Anderson that the broken part for the plane won't be available until the morning. The man hasn't yet notified his chief mechanical officer. Anderson shoots the mechanic in the head.
Tony wants to tell Audrey about Jack's situation, but Michelle doesn't want Audrey to interfere with any of their decisions.
Tony and Michelle tell Audrey that Jack is missing and might be held captive by Marwan. Audrey is angry, and she demands that Michelle get him back.
Marwan and his men bring Jack to their hideout and chain him to a pipe. Marwan asks whether the government has any other links to their plot. Jack accuses him of failing in his master plan. The guard slams Jack with a metal pipe.
One of the guards alerts Marwan that the police have been notified about the missing family of the Air Force pilot. Since he was a military official, the federal agencies will be quickly notified. Marwan wants to distract CTU so that they don't realize the significance of this report.
Marwan questions Jack about Behrooz without letting on why he is interested. Jack tells Marwan to call CTU himself. When Marwan leaves the room, Jack notices a telephone panel box in proximity to his chained hands.
Chloe and Edgar argue over seniority. She had assumed that she would be fully reinstated in her old job. Curtis confirms that, for the day, Edgar will be her supervisor on paper. Chloe begrudgingly accepts this even though she doesn't think it's fair.
Marwan phones CTU and asks to speak to the director. Edgar sets up filters and tracers on the call. Michelle picks up, and Marwan tells her that he wants to trade Jack for Behrooz. He quickly clicks off, and CTU is unable to trace it. No one knows why Behrooz is worth trading.
Marwan orders an associate to notify him the moment the information about the pilot's family's disappearance gets released.
In the briefing room, Tony surmises that either Behrooz has a personal connection to Marwan or else has some damaging information to the terrorist plot. Michelle asks for a background check on Behrooz, and she wants Curtis to interrogate the boy.
Tony suggests to Curtis that they apply physical pressure on Behrooz because they've run out of time. Curtis summons Richards, the torture specialist.
Audrey asks Tony if they have any updated news. He lets her know that Jack is alive and that Marwan wants to trade him for Behrooz. Tony warns her that the trade may not even happen if Behrooz proves tactically valuable to stopping the terrorists.
Curtis interrogates Behrooz without letting him know that Dina is dead. He becomes physically forceful, and Behrooz maintains that he doesn't know anything about Marwan. Richards enters the room with his trusty syringe. Behrooz cries out in terror.
Marwan calls Michelle with the location for the exchange. She asks for proof that Jack is alive, and Marwan holds the phone out. Jack quickly shouts that he is in an abandoned warehouse downtown. Marwan hangs up. Jack tells Marwan that he is expendable and that CTU won't give up Behrooz if he is so valuable.
Marwan is notified that the missing person report has been sent to CTU.
Edgar receives an hourly report log from LAPD, and he asks Chloe what she usually does with these reports. Chloe tells him that he needs to go through it because he's"the boss." The busy Edgar hands it off to another techie named Meg.
Dressed in the dead mechanic's overalls, Anderson tells the chief mechanical officer that the faulty part was only a false alarm. The officer approves the flight for takeoff.
Chloe brings Audrey some paperwork to sign. She asks how it feels to have her husband take a bullet for the man she's in love with. Audrey gets annoyed, and Chloe apologizes for her inappropriate bluntness.
The drugged Behrooz is woozy as he gives Curtis no real information on Marwan.
Meg alerts Chloe that an Air Force pilot's family is missing, but Chloe says that Edgar is in charge and should handle it. Meg burns the information onto a disk. Chloe warns Edgar that Meg has something for him.
Tony lets Audrey know that they still haven't decided whether to go ahead with the exchange for Jack.
Michelle introduces the staff to Bill Buchanan from Division. He has come in to oversee the operation for the prisoner exchange. The interrogation on Behrooz came up empty and there was no connection found in his background check. A scan of Behrooz's body showed that there wasn't anything implanted. Since the CTU trace on Jack and Dina proved fruitless, Buchanan believes this exchange is their only chance to locate Marwan.
Anderson tells Marwan that he should be airborne in thirty minutes. Jack, meanwhile, has twisted the wires in the telephone panel box to cause sparks. Marwan's thugs enter the room. While still handcuffed to the pipes, Jack knocks both of them down with his feet. This effectively distracts them from the box. The men subdue Jack and lead him out.
Meg brings Edgar a disk with verification on the Air Force pilot family's missing person report. He is too busy to look at it.
Tony brings Audrey the news that CTU will go ahead in exchanging Behrooz for Jack. He is honest about the fact that Jack is expendable.
Curtis tells Behrooz that he will be traded to Marwan for an agent. He also says that Dina knows about this. They put a watch with a transmitter on him and inject another transmitter into the back of his head.
Tony assigns Edgar to hook up a video feed to the van where Behrooz is being transported. He tells him this takes priority over the hourly police reports. Edgar puts Meg's disk aside.
Chloe monitors the two tracking devices on Behrooz. Marwan calls Michelle with final instructions about the handoff. He hangs up, and orders his men to kill Jack once they have Behrooz.
As they drive toward the meeting point, Curtis tells Behrooz that he's going to lead them to wherever Marwan is. Behrooz knows this does not bode well for him.
Marwan has yet to decide what to do with Behrooz once he has him.
The CTU van arrives near a dam, and Curtis walks Behrooz out. Marwan sends his car to the same spot.
Even though Marwan is not at the meeting point, Buchanan orders CTU to proceed with the exchange. Behrooz walks toward Jack and asks him about Dina. Jack lies and says he doesn't know where she is.
Behrooz gets in the terrorists' van, and Marwan gives the signal for his sniper to kill Jack. Suddenly, a CTU sniper takes out Marwan's sniper first. The field ops grab Jack and throw him in the van. Jack questions why they handed over the boy.
Jack calls Tony and explains that he shorted out some of the phone lines in Marwan's hideout. He wants CTU to find phone service obstructions within a radius of the dam.
Marwan's men spot the tracking device on Behrooz's watch and remove it. They tell him that Dina is dead. They also find the injected transmitter in his head and carve it out with a knife.
Chloe sees that both tracking devices have been obstructed. She asks Edgar for help in setting up the satellite to track Behrooz in the van. Edgar says he found something in the local police reports that she should see, but Chloe wants him to do the satellite first.
From the phone records, Tony gets coordinates on Marwan's location. He orders the tactical teams to be sent there.
Anderson assures Marwan that he's just about to get in the air. Anderson is in the cockpit of an F-117A stealth fighter jet as it rolls out onto the tarmac.