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

PRESUMED DEAD FOR 18 MONTHS, JACK BAUER SUDDENLY BECOMES THE MOST WANTED MAN ALIVE IN PART 1 OF THE SPECIAL TWO-NIGHT, FOUR-HOUR "24" SEASON PREMIERE EVENT SUNDAY, JANUARY 15, ON FOX

Part 2 of the Four-Hour Premiere Event Airs Jan. 16

Season five starts 18 months after Jack Bauer was forced to fake his own death and go underground. Now living under a false name and working in an oil field, Jack leads a quiet life, renting a room with a woman and her son. An early morning breach of national security, however, triggers the series' most shocking season opener yet, forcing Jack to reemerge. Once out in the open, Bauer quickly becomes the most wanted man alive while CTU commander Bill Buchanan and key operatives react to a series of escalating tragedies. Meanwhile, a shaky President Logan is forced to balance the national security emergencies with the signing of a significant arms treaty he believes will be his legacy in Part 1 of the special four-hour, two-night season premiere of 24, "Day 5: 7:00 AM-8:00 AM"/"Day 5: 8:00 AM-9:00 AM" Sunday, Jan. 15 (8:00-10:00 PM ET/PT) on FOX. (TWF-501/502) (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.

[EDITOR'S NOTE : THE SIMPSONS, THE WAR AT HOME, FAMILY GUY and AMERICAN DAD are preempted this night.]