An unhinged I.T. tech for a passenger rail line re-wires the company’s new computer system, setting up a head-on collision between two west coast trains; one of them is carrying the vice-president’s wife, while the other has been commandeered by…the I.T. tech, who has assumed control of the train’s diesel locomotive, apparently forgetting that he’ll now be part of that collision, too. His ransom demand: an on-air confession of guilt from the railroad employee responsible for his family’s death. The question now is, who’s going to stop the trains, and how?