Nicholas Clement, who works for the King and Empire Railway Company, is one of the few employees left who have resisted the psychic control of the anomaly known as Kappa 12. He is fired from his job and tries to take some of the evidence with him, but is guarded by one of management's thugs. Suddenly there is a distraction in the rail yard, as a train is on fire. The guard runs to investigate, and the Doctor pops into Clement's office. The two leave the building and get into one of the trains.