S1, E23: In part two of a two-part season finale, Jack's squad must determine the best course of action when Samantha is shot and possibly critically injured in a hostage situation. After the ransom drop for a woman who has disappeared goes dreadfully wrong, Samantha becomes trapped in a bookstore by the kidnapper, Barry Mashburn (recurring guest star Tom Irwin), who has discovered that she is an FBI agent. Jack successfully negotiates Samantha's release by substituting himself then continues to bargain on behalf of other hostages. Meanwhile, the team continues to search for Sydney Harrison (recurring guest star Marsha Dietlein Bennet), the missing woman. Part 2 of 2