|Synonyms:||conspiracy episode (in XF)|
|See also:||Story Arc, Monster of the Week|
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Mytharc stands for "mythology arc" and refers to the central storyline of a series. The term was coined by the creators of The X-Files and was used by fans when discussing elements that were part of that central storyline. Episodes that dealt with those elements or introduced a new piece of the puzzle were called "mytharc episodes." The two-parters Colony/Endgame and Tunguska/Terma are considered mytharc episodes because they are part of the bigger picture and not just a MOTW.
- Myth Arc article at the TV Tropes wiki