Dizi Adı: The X-Files
Bölüm Adı: Zero Sum
Sezon/Bölüm: 4. Sezon 21. Bölüm
Yayın Tarihi: 27 Nis. 1997

Skinner destroys evidence to cover up a woman’s death and poses as Agent Mulder to complete the task. Mulder finds out about Skinner’s deception and confronts him, and Skinner reveals that he is working for the Cigarette-Smoking Man in order to obtain a possible cure for Scully’s cancer.