The X-Files Season 4 Episode 21
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.
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TV-Show Info Page: The X-Files TV-Show Info
Episode Title: Zero Sum
Air Date: 1997-04-27
Season 4 Episodes List:
Episode 1 - HerrenvolkEpisode 2 - HomeEpisode 3 - TelikoEpisode 4 - UnruheEpisode 5 - The Field Where I DiedEpisode 6 - SanguinariumEpisode 7 - Musings of a Cigarette Smoking ManEpisode 8 - TunguskaEpisode 9 - TermaEpisode 10 - Paper HeartsEpisode 11 - El Mundo GiraEpisode 12 - Leonard BettsEpisode 13 - Never AgainEpisode 14 - Memento MoriEpisode 15 - KaddishEpisode 16 - UnrequitedEpisode 17 - Tempus FugitEpisode 18 - MaxEpisode 19 - SynchronyEpisode 20 - Small PotatoesEpisode 21 - Zero SumEpisode 22 - ElegyEpisode 23 - DemonsEpisode 24 - Gethsemane
