Bölüm Adı: Day 4: 4:00 A.M.-5:00 A.M. - Yayın Tarihi: 17 May. 2005
Konu (Dikkat Sporiler içerebilir!)
Jack finds that his efforts to bargain with Marwan for the location of the missile strike are futile.
Heller pushes his son for information when CTU discovers that he may have had contact with Marwan before the attacks.
Logan finds himself in the middle of a power struggle between Palmer and the ambitious Speaker of the House.
Tony and Michelle explore their rekindled passion for each other, but their hopes for the future may be short-lived when a familiar player enters the game and takes a hostage.