Criminal Minds
Derailed
S1 E9:
Elle, along with many others, is held hostage on a train in Texas by a paranoid schizophrenic who is convinced that the U.S. government is monitoring him. Hotchner and Gideon are forced to play into the man's fantasy to save the people he has taken hostage.
Starring
Kirsten Vangsness, Susan Gibney, Chris Bauer