Following the shootout, Jack goes to the police station to try to get key information from Greg Penticoff. Meanwhile, Kimberly gets handed over to Gaines and Palmer arranges a meeting with reporter Maureen Kingsley.

20 months after last season's shocking season finale, Jack Bauer joins with an unlikely ally in an effort to stop a suicide bomber and uncover who is behind the terrorist strike on Los Angeles.

CTU learns there are four more nuclear threats to contend with and, in a strange turn of events, the trail Jack follows leads him right to his brother.

Jack's suspicion that someone at CTU may be involved in the assassination attempt on David Palmer causes friction with one of his closest supporters. Meanwhile, Palmer ignores the advice of his security team to move ahead with a public appearance.

In first episode of 24, Jack Bauer is called into work at the Counter Terrorist Unit, where he learns that an assassination attempt will be made on presidential candidate David Palmer.

Roger Cross tries to dish about Curtis in Season 6.

24 is committed to fighting climate change, and Kiefer urges fans of the show to do the same.

Agent Aaron Pierce (Glenn Morshower) finally gets some action after 5 years on the show.

The actors playing "Edgar" and "Chloe" are sad when they find out Edgar's fate.

The cast and crew celebrate the 100th episode with a party on the CTU set!