The old man kills Dr. Yonechi (Hiro Kanagawa), a Japanese researcher, by pricking him with a metallic stylus, introducing an unknown chemical into his body. The agents approach Nichols' girlfriend and colleague, Lisa Ianelli (Susan Lee Hoffman), who recognizes the chemical compound as a rapid freezing agent that Jason had been engineering for years. However, she claims that the compound has not yet been invented and that if Yonechi was injected with the chemical, he may not be dead. With Lisa's help, Scully and a team of medical personnel successfully resuscitate Yonechi, only for his body temperature to rapidly increase until he bursts into flames. Police receive a tip that the old man is living at a nearby hotel. Inside the old man's room, the agents discover a faded color photograph picturing Jason, Yonechi and Lisa toasting champagne glasses in the cryology lab. Mulder realizes from the picture that the old man is a time traveller who is attempting to alter that future, and that he is none other than Jason Nichols.