Douglas O'Keeffe

Jack turns the tables and finds a key to the nuclear threat, while CTU suffers a critical setback; President Palmer uncovers deception on his team, and must make hard choices about who he can trust; and Kim learns that Gary Matheson has hurt his daughter more than she realized.

Jack rushes to reestablish his old undercover identity, but he is not welcomed back until he proves his loyalty with a shocking "gift." Kim hustles Megan away from the disturbed Matheson house. Palmer negotiates with a curious press, and makes a hard choice. CTU go-getter, Paula, gets nervous as the reality of the terrorist threat sinks in.

Jack's undercover work pays off when he joins a deadly mission. Kim risks everything to save Megan from her violent father. Kate Warner learns that she and her family may be in danger, as Reza's terrorist connections are confirmed. President Palmer’s aide, Lynne Kresge, must find a way around Rayburn to issue a terrible warning.

The spirit of a young girl is released after Lois (recurring guest star ERICA DURANCE) finds a corpse in the walls of the Talon. Clark and Lois must follow the trail of the spirit and find her killer, who has been preying on girls in Smallville for the past 10 years. When Lois is suddenly kidnapped, Clark comes to the rescue.