Day 1: 6:00pm-7:00pm

Summary
Jack Bauer and Geroge Mason investigate the area the Drazen's paid to remove the power. Nina Myers tries to warn Jack that his family has gone missing but is stopped by Mason. Teri Bauer looks over her home trying to spark her memory while one of the Drazen's assassins closes in. Kim Bauer finds herself in the middle of a drug deal, while David Palmer releases Keith's story to the press.

Episode Guide
''Right now, terrorists are plotting to assassinate a presidential candidate, my wife and daughter have been targeted, and people that I work with may be involved in both. I'm Federal Agent Jack Bauer, and today is the longest day of my life.''

The following takes place between 6:00pm and 7:00pm on the day of the California Presidental Primary.

Starring

 * Kiefer Sutherland as Jack Bauer
 * Leslie Hope as Teri Bauer
 * Sarah Clarke as Nina Myers
 * Elisha Cuthbert as Kimberly Bauer
 * and Dennis Haysbert as David Palmer

Special Guest Stars

 * Penny Johnson Jerald as Sherry Palmer
 * Carlos Bernard as Tony Almeida

Guest Starring

 * Zeljko Ivanek as Andre Drazen
 * Vicellous Reon Shannon as Keith Palmer
 * Xander Berkeley as George Mason
 * Daniel Bess as Rick Allen
 * Zach Grenier as Carl Webb
 * [Megalyn Echikunwoke]] as Nicole Palmer
 * Navi Rawat as Melanie
 * Edoardo Ballerini as Frank Allard
 * Henri Lubatti as Jovan Myovic
 * Vincent Angell as Dr. Phil Parslow
 * Kirk Baltz as Teddy Hanlin
 * Darin Heames as Krugman
 * Noel Guglielmi as Craig
 * Jason Matthew Smith as Chris
 * Lew Dauber as Jorgensen
 * Jenn McCullough as Elaine

===Co-Starring
 * Randy J. Goodwin as Security Guard
 * Mariah Pasos as Sam's Partner