Bölüm Adı: Day 4: 5:00 P.M.-6:00 P.M. - Yayın Tarihi: 01 Mar. 2005
Konu (Dikkat Sporiler içerebilir!)
Jack and Curtis finally learn the location of the override device. They try to trap the architect of the terrorist strike before the remaining nuclear plants go critical.
Tony pushes Dina to reveal more of her knowledge of Marwan, while Driscoll faces another personal crisis with her daughter.