After three years since thwarting a terrorist attack on the United States, Jack Bauer is back in L.A. working undercover to bring down drug lord Ramon Salazar. The FBI receives a phone call threatening to release a deadly virus in Los Angeles, if Salazar is not released from prison within six hours.

Many familiar faces return for this day of crisis. A fearsome new villain is played with cold-hearted intensity. The threat this time around is much different, and for Jack Bauer there are multiple situations to deal with. Jack has to make some extremely difficult choices, including how to handle a new love in his life who happens to be the daughter of the Secretary of Defense. Their new found love will be put to the ultimate test during the next...

It's been over a year since his wife's death, but Jack Bauer and his daughter are still reeling from the tragedy. The two are estranged and Jack no longer works for CTU. But an urgent phone call from the President plunges Jack back into another 24-hour nightmare as he races against time to prevent the detonation of a nuclear bomb in Los Angeles.