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The X-Files

The X-Files

The truth is out there.

1993Ended11 Seasons218 Episodes8.4TMDB
FOX

The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena. Mulder believes in the existence of aliens and the paranormal while Scully, a skeptic, is assigned to make scientific analyses of Mulder's discoveries that debunk Mulder's work and thus return him to mainstream cases.

Created by: Chris Carter
Season 4 · Episode 21

Zero Sum

Apr 27, 1997·45m

After a swarm of bees mysteriously kill a postal worker in an enclosed restroom, Assistant Director Skinner covers it up by destroying the evidence. In order to complete the task he poses as Agent Mulder, however his deception backfires. When Mulder finds out and confronts him, 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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Episode FAQ

Direct answers for episode-level questions and details.

When did The X-Files Season 4 Episode 21 air?

The X-Files Season 4 Episode 21 aired on April 27, 1997.

How long is The X-Files Season 4 Episode 21?

This episode runs for approximately 45 minutes.

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