"Day 3: 4:00AM - 5:00AM", Episode #316.
Jack loosens his control of Amador in an attempt to learn who he is working for; CTU quarantines an entire hotel where one of the vials with the virus has been planted.
Cast: Kiefer Sutherland, Elisha Cuthbert, Dennis Haysbert, Carlos Bernard, Reiko Aylesworth, James Badge Dale, D.B. Woodside, Mary Lynn Rajskub, Zachray Quinto, Greg Ellis, Penny Johnson Jerald, Lothaire Bluteau, Jesse Borrego, Paul Blackthorne, Doug Savant, J.D. Cullum.
Producer(s): Joel Surnow, Robert Cochran, Brian Grazer, Howard Gordon.
Original Airdate: March 30, 2004.