[s4e1] Day 4: 7:00 A.m.-8:00 A.m. -

The train bombing allows a terrorist named Dar to steal a high-security briefcase containing a device known as the Dobson-type Override , which can control nuclear power plants.

As the hour concludes, terrorists ambush the Secretary and his daughter, Audrey Raines (who is also Jack's secret lover), at her brother Richard's house. Jack is forced to listen helplessly over the phone as Audrey is abducted. [S4E1] Day 4: 7:00 a.m.-8:00 a.m.

Through his interrogation of Sherek, Jack discovers that the train was just a distraction; the primary target is actually Secretary James Heller . The train bombing allows a terrorist named Dar

Jack's new love interest and daughter of the Secretary of Defense. James Heller : The Secretary of Defense and Jack's new boss. Through his interrogation of Sherek, Jack discovers that

In the opening hour of , set 18 months after the events of Day 3, Jack Bauer has been fired from CTU and is now working as a special assistant to U.S. Secretary of Defense James Heller .

A tactical field agent working under Driscoll.

The episode introduces a seemingly normal suburban family, the Arazes, who are revealed to be a deep-cover sleeper cell involved in the day's attacks. New Characters Introduced