PA: Due to some graphic violence, viewer discretion is advised.

JACK REMAINS ON THE RUN WHILE TERROR THREATS INTENSIFY IN PART 2 OF THE SPECIAL TWO-DAY, FOUR-HOUR "24" SEASON PREMIERE EVENT MONDAY, JANUARY 16, ON FOX

Sean Astin Makes "24" Debut and Series' 100th Episode Included

Still on the run, Jack Bauer attempts to follow the few leads he's discovered regarding the developing terror threat involving Russian separatists. President Logan's arms treaty is threatened when innocent lives are at stake. In an attempt to quell the situation, CTU Chief Bill Buchanan deploys operatives and earnest Lynn McGill arrives from the District Office in Part 2 of the special two-day, four-hour season premiere of 24, "Day 5: 9:00 AM-10:00 AM" and the 100th episode "Day 5: 10:00 AM-11:00 AM" airing Monday, Jan. 16 (8:00-10:00 PM ET/PT) on FOX. (TWF-503/504) (TV-14 V)

Cast: Kiefer Sutherland as Jack Bauer, Carlos Bernard as Tony Almeida, Kim Raver as Audrey Raines, Mary Lynn Rajskub as Chloe O'Brian, Roger Cross as Curtis Manning, Louis Lombardi as Edgar Stiles, James Morrison as Bill Buchanan, Gregory Itzin as President Logan, Jean Smart as First Lady Martha Logan.

Guest Cast: Connie Britton as Diane Huxley, Brady Corbet as Derek Huxley, Jude Ciccolella as Mike Novick, John Allen Nelson as Walt Cummings, Jonah Lotan as Spencer Wolff, Sandrine Holt as Evelyn, Sean Astin as Lynn McGill.