Jack leaves CTU and isolates himself, soGeorge Mason becomes the Director of CTU LA, awaiting his pending position in Washington, DC.
Kim leaves and recently becomes a live-in nanny for the Mathison's.
David Palmer has won the election and is now President.
It has been discovered that a terrorist group has a nuclear bomb and is planning to detonate it in LA.The terrorist group is Second Wave and there was one federal agent that had previously worked undercover to bring down the group - Jack Bauer.
Jack the recluse is brought back in
Jack undercover with Wald’s crew
Jack vs Nina
Mason the dying coward (includes killing Paula)
Kate and Tony investigates Reza
Kim takes Megan from Gary and is set up for kidnapping