>These are not the best episodes, but the ones most important for catching up with the X-Files mythology.
>Ones with a * are not essential mythology episodes, but connect to the mythology.
>Ones with ** are the best episodes of the series, but not part of the mythology.
Season One

Pilot
Deep Throat
*Squeeze
*Conduit
**Ice
*Fallen Angel
*Eve
**Beyond The Sea
E.B.E.
*Tooms
The Erlenmeyer Flask


Season Two

Little Green Men
The Host
Sleepless
Duane Berry
Ascension
One Breath
**Irresistible
**Die Hand Die Verletzt
Colony
End Game
**Humbug
Anasazi


Season Three

The Blessing Way
Paper Clip
**D.P.O.
**Clyde Bruckman's Final Repose
Nisei
731
**War of the Coprophages
**Syzygy
Piper Maru
Apocrypha
**Pusher
**Jose Chung's From Outer Space
Talitha Cumi


Season Four

Herrenvolk
Musings of a Cigarette Smoking Man
Tunguska
Terma
**Never Again
*Leonard Betts
Momento Mori
*Tempus Fugit
*Max
Zero Sum
Gethsemane


Season Five

Redux
Redux II
*Unusual Suspects
**Post-Modern Prometheus
Christmas Carol
Emily
**Chinga (Stephen King's episode)
Patient X
The Red and the Black
*Travelers (The origins of The X-Files)
The End

Movie: Fight The Future