As the clock approaches the final hours of a long and terrifying day underscored by a nuclear blast, the loss of thousands of innocent lives, a Presidential assassination attempt and the recovery of threatening nukes, Jack stops at nothing to get what he wants and to protect the country from an international incident that could change the world forever in Day 6: 4:00 AM-5:00 AM/Day 6: 5:00 AM-6:00 AM, the two-hour Season Six finale of 24 airing Monday, May 21 (8:00-10:00 PM ET/PT) on FOX. (TWF-623/624) (TV-14; V) CC-HDTV 720p-Dolby Digital 5.1 PA: Viewer discretion is advised.

Cast: Kiefer Sutherland as Jack Bauer, Mary Lynn Rajskub as Chloe OBrian, James Morrison as Bill Buchanan, DB Woodside as President Wayne Palmer, Jayne Atkinson as Karen Hayes, Carlo Rota as Morris OBrian, Peter MacNicol as Thomas Lennox, Regina King as Sandra Palmer, Eric Balfour as Milo Pressman and Marisol Nichols as Nadia Yassir.

Guest Cast: Powers Boothe as Vice President Noah Daniels, Chad Lowe as Reed Pollock, Ricky Schroder as Mike Doyle, Kari Matchett as Lisa Miller and Nick Jameson as Russian President Yuri Suvarov