The fourth season is set 18 months after season three. Jack is now working for Secretary of Defense James Heller after being fired by CTU due to his heroin addiction. As the day begins, he gets caught up in an elaborate terrorist plot which involves James Heller and his daughter Audrey Raines.
All episodes — Season 4
S4 E1Day 4: 7:00 A.M.-8:00 A.M.
Jan 9, 20058.443 min
Eighteen months have elapsed since the conclusion of Day 3. A commuter train bound for Los Angeles explodes. A man steals a suitcase from a passenger in the wreckage and then kills him. Jack has been dismissed from CTU and now works for Se
S4 E2Day 4: 8:00 A.M.-9:00 A.M.
Jan 9, 20058.244 min
Jack pushes Driscoll to reinstate him in the wake of Heller's kidnapping. He finds himself working as a subordinate when the Field Ops team goes to pick up Andrew. Behrooz finds himself torn between his loyalty to his parents and his feeli
S4 E3Day 4: 9:00 A.M.-10:00 A.M.
Jan 10, 20058.344 min
Jack tracks Kalil with Chloe's aid, but is forced to watch helplessly as Andrew is tortured for information. Behrooz pleads with his parents when they order him to bring Debbie to their home for questioning. Curtis uses harsh methods to int
S4 E4Day 4: 10:00 A.M.-11:00 A.M.
Jan 10, 20058.445 min
Jack acts as a bandit and takes hostages to buy Chloe more time to get satellite surveillance. Meanwhile, Chloe must confide in Edgar for help when Driscoll becomes suspicious. Behrooz discovers just how far his mother is willing to go to i
S4 E5Day 4: 11:00 A.M.-12:00 P.M.
Jan 17, 20058.244 min
Jack and Driscoll agree to work together when the police make a critical error in dealing with Kalil. Heller and Audrey take drastic action in the hopes of avoiding the impending trial. Driscoll makes a deal with Chloe to get her out of t
S4 E6Day 4: 12:00 P.M.-1:00 P.M.
Jan 24, 20058.544 min
Jack initiates a fierce gun battle with the terrorists as he races to rescue Heller and Audrey before the military strike begins. Dina questions her own dedication to their cause when her husband reveals his plans for Behrooz. Driscoll an
S4 E7Day 4: 1:00 P.M.-2:00 P.M.
Jan 31, 20058.544 min
Jack takes Audrey to ID the man she recognized at the compound, but the terrorists get there soon after and pin them down. Jack must call on an old friend to help him escape. Heller puts Edgar in charge of dealing with the nuclear override
S4 E8Day 4: 2:00 P.M.-3:00 P.M.
Feb 7, 20058.444 min
Jack and Audrey hide out with an embittered Tony as Audrey makes a positive ID of the man from the kidnapping. Marianne successfully diverts suspicion from herself, leading Driscoll to torture the wrong person for information. Behrooz tak
S4 E9Day 4: 3:00 P.M.-4:00 P.M.
Feb 14, 20058.444 min
Jack and Tony are able to trace Dina's location, but Behrooz slips through their fingers. Dina demands a full pardon for her son in exchange for information on the override device. Edgar wrestles with his emotions when his mother is trappe
S4 E10Day 4: 4:00 P.M.-5:00 P.M.
Feb 21, 20058.444 min
Audrey places herself in a compromising position when she and Jack learn of her husband's possible involvement with the terrorists. Marianne offers Curtis information on the location of the override device in exchange for a lighter sentenc
S4 E11Day 4: 5:00 P.M.-6:00 P.M.
Feb 28, 20058.344 min
Jack and Curtis finally learn the location of the override device. They try to trap the architect of the terrorist strike before the remaining nuclear plants go critical. Tony pushes Dina to reveal more of her knowledge of Marwan, while Dr
S4 E12Day 4: 6:00 P.M.-7:00 P.M.
Mar 7, 20058.444 min
Jack and Paul visit the defense contractor who employed Marwan, but the company executives put their own interests ahead of CTU's and take major steps to destroy evidence. After a grief-stricken Driscoll relinquishes her command, Heller ap
S4 E13Day 4: 7:00 P.M.-8:00 P.M.
Mar 14, 20058.444 min
Jack and Paul enlist civilian help when they must fight off soldiers sent to kill them by McLennan-Forster. Tensions flair between Tony and Michelle as she assumes command of CTU. Sarah tests Michelle's authority by giving her an ultimatum
S4 E14Day 4: 8:00 P.M.-9:00 P.M.
Mar 21, 20058.244 min
Jack learns the identity of a man who may be able to lead him to Marwan. He forces Dina to help him in a mock hostage situation that will get him close to the suspect. Michelle calls on Chloe for help when Edgar begins to crack under press
S4 E15Day 4: 9:00 P.M.-10:00 P.M.
Mar 28, 20058.144 min
Marwan decides to trade Jack for Behrooz in hopes of distracting CTU from his real objective. Tony and Michelle weigh the consequences of the trade, while Curtis reluctantly interrogates Behrooz in order to learn more about Marwan.
S4 E16Day 4: 10:00 P.M.-11:00 P.M.
Apr 4, 20058.444 min
CTU raids Marwan's hideout, but he manages to slip through their fingers. Luckily, Jack locates a lead that may help him identify Marwan's next target. Tony becomes suspicious of Michelle's personal life, while Audrey reunites with Paul an
S4 E17Day 4: 11:00 P.M.-12:00 A.M.
Apr 11, 20058.644 min
Mike pushes for the Vice-President to be sworn into office as the White House waits for news of Keeler's fate. Two innocent bystanders are dragged into the fight as Jack and Marwan both pursue a briefcase that contains the launch codes for
S4 E18Day 4: 12:00 A.M.-1:00 A.M.
Apr 18, 20058.244 min
Curtis brings in a suspect who has critical information about Marwan's next strike. Michelle orders Curtis to use harsh methods to interrogate the suspect, but things get complicated when Marwan sends a lawyer to defend his rights. Logan's
S4 E19Day 4: 1:00 A.M.-2:00 A.M.
Apr 25, 20058.744 min
Chloe is unexpectedly thrust into fieldwork when a woman reports that her boyfriend may be part of the terrorist conspiracy. Jack and Curtis find their latest efforts to trap Marwan thwarted by the Secret Service, who have orders to arrest
S4 E20Day 4: 2:00 A.M.-3:00 A.M.
May 2, 20058.844 min
After Logan authorizes Palmer to take charge of the crisis, Palmer sanctions Jack and Curtis to infiltrate the Chinese Embassy on a covert operation to capture a suspect. Tony and Michelle continue to bump into each other's personal lives,
S4 E21Day 4: 3:00 A.M.-4:00 A.M.
May 9, 20058.445 min
CTU scrambles to forge an alibi when a Chinese representative produces evidence of American involvement in the raid on their embassy. Audrey gives Jack the cold shoulder, while Palmer and Logan clash over the consequences of Palmer's decis
S4 E22Day 4: 4:00 A.M.-5:00 A.M.
May 16, 20058.644 min
Jack finds that his efforts to bargain with Marwan for the location of the missile strike are futile. Heller pushes his son for information when CTU discovers that he may have had contact with Marwan before the attacks. Logan finds himsel
S4 E23Day 4: 5:00 A.M.-6:00 A.M.
May 23, 20058.844 min
Mandy uses Tony as leverage to try to force Michelle to aid in her escape. A Chinese security operative captures and interrogates one of the CTU agents involved in the raid on the embassy. Palmer and Logan argue over the option of evacuat
S4 E24Day 4: 6:00 A.M.-7:00 A.M.
May 23, 2005944 min
As the missile speeds toward its destination, Mandy cuts a deal with Jack and the President to give up Marwan's location in exchange for a full pardon on all of her crimes. Tony and Michelle share a happy reunion, but Jack finds his relati