Eighteen months have passed since Jack Bauer's wife was murdered. His daughter Kimberly doesn't want to know anything more about him; he is on leave from his work at CTU, the CIA's anti-terrorist unit in Los Angeles. Until he receives a call from the President of the United States himself: Tell him to come to a secret meeting in his old office. The reason: terrorists are planning an attack in which a nuclear bomb is to explode in Los Angeles within the next 24 hours. Jack can no longer refuse CTU. He agrees to go undercover to track down the assassins. What he doesn't know yet: You are under the same cover as the person who destroyed his life one and a half years ago...
8.00 - 9.00 o'clock
U.S. President's urgent call calls on suspended CTU agent Jack Bauer. An unimaginable catastrophe threatens: In the next 24 hours a nuclear bomb is to explode in Los Angeles.
9.00 - 10.00 o'clock
While Jack tries to infiltrate a group of terrorists, Kim tries to take Megan away from her violent father. Meanwhile, young Kate feels that something is wrong with her sister's fiancé.
10.00 - 11.00 o'clock
Kim's going to CTU. She doesn't know terrorists are on their way to blow up the building. Mason, who received a tip about the bomb, is combing an industrial area on the outskirts of town. A disastrous mistake...
11.00- 12.00 o'clock
Mason returns to CTU - and must realize he's made a decision that could cost him his life. While Kim takes Megan to the hospital after a seizure, Jack is stunned to find out who ordered the men to assassinate CTU.
12.00 - 13.00 o'clock
On a tip from CTU, Tony goes to the Warners' house to question Reza. Jack convinces Mason at CTU to let him interrogate Nina Myers. Nina only wants to talk when the president pardons her.
13.00 - 14.00 o'clock
President Palmer wants the truth out of the media for now. But someone seems to be disobeying his orders. Kim's getting Megan out of the hospital. Meanwhile, Reza passes on secret information to Tony.
14.00 - 15.00 o'clock
Palmer is investigating Sherry's claim that members of his administration staff are plotting to take over the presidency. A police patrol stops Kim, Megan and Miguel for speeding - and makes a gruesome find in the trunk of their car.
15.00 - 16.00 o'clock
While her father and Reza are being interrogated at CTU, Kate takes the opportunity to search her father's computer files. Nina refuses to tell Jack where the bomb is. Then the bang of an explosion breaks the silence - her plane falls from the sky.
16.00 - 17.00 o'clock
When Jack and Nina are caught in fire at the crash site, Nina points a gun at Jack. Mason lets Tony in on his situation. He suggests playing Reza and his fiancée's father off against each other to find out who has made a deal with the terrorists.
17.00 - 18.00 o'clock
After a CTU sniper disarmed Nina, Jack makes a discovery: Did the commands at the site of the crash come on behalf of the National Security Agency? Reza gets a deadly surprise from his fiancée Marie.
18.00 - 19.00 o'clock
Jack and Kate set out together in search of Syed Ali. Meanwhile, Tony and Mason are trying to find out who killed Reza. President Palmer has a torture expert question Roger Stanton about the bomb.
19.00 - 20.00 o'clock
Jack informs Kate of Marie's involvement in the terrorist plans and asks her to help him find her sister. Lynne, the president's publicist, learns of Sherry's connection to Stanton.
20.00 - 21.00 o'clock