S07E20: Fight Club
Mulder and Scully cross paths with two women who are identical and have followed each other across 17 states in the last three years, causing chaos and mayhem wherever they are.
Previous Episode 
Season 1
Pilot
S1E1 / 10 Sep 1993
Deep Throat
S1E2 / 17 Sep 1993
Squeeze
S1E3 / 24 Sep 1993
Conduit
S1E4 / 01 Oct 1993
The Jersey Devil
S1E5 / 08 Oct 1993
Shadows
S1E6 / 22 Oct 1993
Ghost in the Machine
S1E7 / 29 Oct 1993
Ice
S1E8 / 05 Nov 1993
Space
S1E9 / 12 Nov 1993
Fallen Angel
S1E10 / 19 Nov 1993
Eve
S1E11 / 10 Dec 1993
Fire
S1E12 / 17 Dec 1993
Beyond the Sea
S1E13 / 07 Jan 1994
Gender Bender
S1E14 / 21 Jan 1994
Lazarus
S1E15 / 04 Feb 1994
Young at Heart
S1E16 / 11 Feb 1994
E.B.E.
S1E17 / 18 Feb 1994
Miracle Man
S1E18 / 18 Mar 1994
Shapes
S1E19 / 01 Apr 1994
Darkness Falls
S1E20 / 15 Apr 1994
Tooms
S1E21 / 22 Apr 1994
Born Again
S1E22 / 29 Apr 1994
Roland
S1E23 / 06 May 1994
The Erlenmeyer Flask
S1E24 / 13 May 1994
Season 2
Little Green Men
S2E1 / 16 Sep 1994
The Host
S2E2 / 23 Sep 1994
Blood
S2E3 / 30 Sep 1994
Sleepless
S2E4 / 07 Oct 1994
Duane Barry (1)
S2E5 / 14 Oct 1994
Ascension (2)
S2E6 / 21 Oct 1994
3
S2E7 / 04 Nov 1994
One Breath
S2E8 / 11 Nov 1994
Firewalker
S2E9 / 18 Nov 1994
Red Museum
S2E10 / 09 Dec 1994
Excelsis Dei
S2E11 / 16 Dec 1994
Aubrey
S2E12 / 06 Jan 1995
Irresistible
S2E13 / 13 Jan 1995
Die Hand Die Verletzt
S2E14 / 27 Jan 1995
Fresh Bones
S2E15 / 03 Feb 1995
Colony (1)
S2E16 / 10 Feb 1995
End Game (2)
S2E17 / 17 Feb 1995
Fearful Symmetry
S2E18 / 24 Feb 1995
Død Kalm
S2E19 / 10 Mar 1995
Humbug
S2E20 / 31 Mar 1995
The Calusari
S2E21 / 14 Apr 1995
F. Emasculata
S2E22 / 28 Apr 1995
Soft Light
S2E23 / 05 May 1995
Our Town
S2E24 / 12 May 1995
Anasazi (1)
S2E25 / 19 May 1995
Season 3
The Blessing Way (2)
S3E1 / 22 Sep 1995
Paper Clip (3)
S3E2 / 29 Sep 1995
D.P.O.
S3E3 / 06 Oct 1995
Clyde Bruckman's Final Repose
S3E4 / 13 Oct 1995
The List
S3E5 / 20 Oct 1995
2Shy
S3E6 / 03 Nov 1995
The Walk
S3E7 / 10 Nov 1995
Oubliette
S3E8 / 17 Nov 1995
Nisei (1)
S3E9 / 24 Nov 1995
731 (2)
S3E10 / 01 Dec 1995
Revelations
S3E11 / 15 Dec 1995
War of the Coprophages
S3E12 / 05 Jan 1996
Syzygy
S3E13 / 26 Jan 1996
Grotesque
S3E14 / 02 Feb 1996
Piper Maru (1)
S3E15 / 09 Feb 1996
Apocrypha (2)
S3E16 / 16 Feb 1996
Pusher
S3E17 / 23 Feb 1996
Teso Dos Bichos
S3E18 / 08 Mar 1996
Hell Money
S3E19 / 29 Mar 1996
Jose Chung's "From Outer Space"
S3E20 / 12 Apr 1996
Avatar
S3E21 / 26 Apr 1996
Quagmire
S3E22 / 03 May 1996
Wetwired
S3E23 / 10 May 1996
Talitha Cumi (1)
S3E24 / 17 May 1996
Season 4
Herrenvolk (2)
S4E1 / 04 Oct 1996
Home
S4E2 / 11 Oct 1996
Teliko
S4E3 / 18 Oct 1996
Unruhe
S4E4 / 27 Oct 1996
The Field Where I Died
S4E5 / 03 Nov 1996
Sanguinarium
S4E6 / 10 Nov 1996
Musings of a Cigarette Smoking Man
S4E7 / 17 Nov 1996
Tunguska (1)
S4E8 / 24 Nov 1996
Terma (2)
S4E9 / 01 Dec 1996
Paper Hearts
S4E10 / 15 Dec 1996
El Mundo Gira
S4E11 / 12 Jan 1997
Leonard Betts
S4E12 / 26 Jan 1997
Never Again
S4E13 / 02 Feb 1997
Memento Mori
S4E14 / 09 Feb 1997
Kaddish
S4E15 / 16 Feb 1997
Unrequited
S4E16 / 23 Feb 1997
Tempus Fugit (1)
S4E17 / 16 Mar 1997
Max (2)
S4E18 / 23 Mar 1997
Synchrony
S4E19 / 13 Apr 1997
Small Potatoes
S4E20 / 20 Apr 1997
Zero Sum
S4E21 / 27 Apr 1997
Elegy
S4E22 / 04 May 1997
Demons
S4E23 / 11 May 1997
Gethsemane (1)
S4E24 / 18 May 1997
Season 5
Redux (2)
S5E1 / 02 Nov 1997
Redux II (3)
S5E2 / 09 Nov 1997
Unusual Suspects
S5E3 / 16 Nov 1997
Detour
S5E4 / 23 Nov 1997
The Post-Modern Prometheus
S5E5 / 30 Nov 1997
Christmas Carol (1)
S5E6 / 07 Dec 1997
Emily (2)
S5E7 / 14 Dec 1997
Kitsunegari
S5E8 / 04 Jan 1998
Schizogeny
S5E9 / 11 Jan 1998
Chinga
S5E10 / 08 Feb 1998
Kill Switch
S5E11 / 15 Feb 1998
Bad Blood
S5E12 / 22 Feb 1998
Patient X (1)
S5E13 / 01 Mar 1998
The Red and the Black (2)
S5E14 / 08 Mar 1998
Travelers
S5E15 / 29 Mar 1998
Mind’s Eye
S5E16 / 19 Apr 1998
All Souls
S5E17 / 26 Apr 1998
The Pine Bluff Variant
S5E18 / 03 May 1998
Folie à Deux
S5E19 / 10 May 1998
The End
S5E20 / 17 May 1998
Season 6
The Beginning
S6E1 / 08 Nov 1998
Drive
S6E2 / 15 Nov 1998
Triangle
S6E3 / 22 Nov 1998
Dreamland (1)
S6E4 / 29 Nov 1998
Dreamland II (2)
S6E5 / 06 Dec 1998
How the Ghosts Stole Christmas
S6E6 / 13 Dec 1998
Terms of Endearment
S6E7 / 03 Jan 1999
The Rain King
S6E8 / 10 Jan 1999
S.R. 819
S6E9 / 17 Jan 1999
Tithonus
S6E10 / 24 Jan 1999
Two Fathers (1)
S6E11 / 07 Feb 1999
One Son (2)
S6E12 / 14 Feb 1999
Agua Mala
S6E13 / 21 Feb 1999
Monday
S6E14 / 28 Feb 1999
Arcadia
S6E15 / 07 Mar 1999
Alpha
S6E16 / 28 Mar 1999
Trevor
S6E17 / 11 Apr 1999
Milagro
S6E18 / 18 Apr 1999
The Unnatural
S6E19 / 25 Apr 1999
Three of a Kind
S6E20 / 02 May 1999
Field Trip
S6E21 / 09 May 1999
Biogenesis (1)
S6E22 / 16 May 1999
Season 7
The Sixth Extinction (2)
S7E1 / 07 Nov 1999
The Sixth Extinction II: Amor Fati (3)
S7E2 / 14 Nov 1999
Hungry
S7E3 / 21 Nov 1999
Millennium
S7E4 / 28 Nov 1999
Rush
S7E5 / 05 Dec 1999
The Goldberg Variation
S7E6 / 12 Dec 1999
Orison
S7E7 / 09 Jan 2000
The Amazing Maleeni
S7E8 / 16 Jan 2000
Signs and Wonders
S7E9 / 23 Jan 2000
Sein Und Zeit (1)
S7E10 / 06 Feb 2000
Closure (2)
S7E11 / 13 Feb 2000
X-Cops
S7E12 / 20 Feb 2000
First Person Shooter
S7E13 / 27 Feb 2000
Theef
S7E14 / 12 Mar 2000
En Ami
S7E15 / 19 Mar 2000
Chimera
S7E16 / 02 Apr 2000
all things
S7E17 / 09 Apr 2000
Brand X
S7E18 / 16 Apr 2000
Hollywood A.D.
S7E19 / 30 Apr 2000
Fight Club
S7E20 / 07 May 2000
Je Souhaite
S7E21 / 14 May 2000
Requiem
S7E22 / 21 May 2000
Season 8
Within (1)
S8E1 / 05 Nov 2000
Without (2)
S8E2 / 12 Nov 2000
Patience
S8E3 / 19 Nov 2000
Roadrunners
S8E4 / 26 Nov 2000
Invocation
S8E5 / 03 Dec 2000
Redrum
S8E6 / 10 Dec 2000
Via Negativa
S8E7 / 17 Dec 2000
Surekill
S8E8 / 07 Jan 2001
Salvage
S8E9 / 14 Jan 2001
Badlaa
S8E10 / 21 Jan 2001
The Gift
S8E11 / 04 Feb 2001
Medusa
S8E12 / 11 Feb 2001
Per Manum
S8E13 / 18 Feb 2001
This Is Not Happening (1)
S8E14 / 25 Feb 2001
Deadalive (2)
S8E15 / 01 Apr 2001
Three Words
S8E16 / 08 Apr 2001
Empedocles
S8E17 / 22 Apr 2001
Vienen
S8E18 / 29 Apr 2001
Alone
S8E19 / 06 May 2001
Essence (1)
S8E20 / 13 May 2001
Existence (2)
S8E21 / 20 May 2001
Season 9
Nothing Important Happened Today (1)
S9E1 / 11 Nov 2001
Nothing Important Happened Today II (2)
S9E2 / 18 Nov 2001
Dæmonicus
S9E3 / 02 Dec 2001
4-D
S9E4 / 09 Dec 2001
Lord of the Flies
S9E5 / 16 Dec 2001
Trust No 1
S9E6 / 06 Jan 2002
John Doe
S9E7 / 13 Jan 2002
Hellbound
S9E8 / 27 Jan 2002
Provenance (1)
S9E9 / 03 Mar 2002
Providence (2)
S9E10 / 10 Mar 2002
Audrey Pauley
S9E11 / 17 Mar 2002
Underneath
S9E12 / 31 Mar 2002
Improbable
S9E13 / 07 Apr 2002
Scary Monsters
S9E14 / 14 Apr 2002
Jump the Shark
S9E15 / 21 Apr 2002
William
S9E16 / 28 Apr 2002
Release
S9E17 / 05 May 2002
Sunshine Days
S9E18 / 12 May 2002
The Truth (1)
S9E19 / 19 May 2002
The Truth (2)
S9E20 / 19 May 2002
Season 10
My Struggle
S10E1 / 24 Jan 2016
Founder's Mutation
S10E2 / 25 Jan 2016
Mulder & Scully Meet the Were-Monster
S10E3 / 01 Feb 2016
Home Again
S10E4 / 08 Feb 2016
Babylon
S10E5 / 15 Feb 2016
My Struggle II
S10E6 / 22 Feb 2016
Season 11
My Struggle III
S11E1 / 03 Jan 2018
This
S11E2 / 10 Jan 2018
Plus One
S11E3 / 17 Jan 2018
The Lost Art of Forehead Sweat
S11E4 / 24 Jan 2018
Ghouli
S11E5 / 31 Jan 2018
Kitten
S11E6 / 07 Feb 2018
Rm9sbG93ZXJz
S11E7 / 28 Feb 2018
Familiar
S11E8 / 07 Mar 2018
Nothing Lasts Forever
S11E9 / 14 Mar 2018
My Struggle IV
S11E10 / 21 Mar 2018
David Duchovny
Fox Mulder
Gillian Anderson
Dana Scully
