Scully summons Mulder when Ridley suddenly appears at her apartment. He tells the agents that he succeeded in making Barnett age in reverse after replacing his hand using salamander cells. However, Barnett stole Ridley's government-sponsored research. Deep Throat meets with Mulder and confirms Ridley's story, saying that the government is negotiating with Barnett to purchase Ridley's work. Scully hears someone dialing into her answering machine and spots Barnett's fingerprint on it. After Barnett calls again, Mulder decides to set up a sting operation at the cello recital for a friend of Scully's, which Barnett learned about from her answering machine.