Season 1:

• Pilot
• Deep Throat"
• Fallen Angel"
• E.B.E."
• The Erlenmeyer Flask"

Season 2:

• Little Green Men
• Duane Barry
• Ascension
• One Breath (DVD only)
• Red Museum
• Colony
• End Game
• Anasazi

Season 3:

• The Blessing Way
• Paper Clip
• Nisei
• 731
• Piper Maru
• Apocrypha
• Talitha Cumi

Season 4

• Herrenvolk
• Tunguska
• Terma
• Memento Mori
• Tempus Fugit
• Max
• Zero Sum
• Demons (book only)
• Gethsemane

Season 5

• Redux
• Redux II
• Christmas Carol (book only)
• Emily (book only)
• Patient X
• The Red and the Black
• The End

Season 6

• The Beginning
• S.R. 819
• Two Fathers
• One Son
• Biogenesis

Season 7

• The Sixth Extinction
• The Sixth Extinction II: Amor Fati
• Sein Und Zeit
• Closure (DVD only)
• En Ami
• Requiem (DVD only)

Season 8

• Within
• Without
• Per Manum
• The Gift (book only)
• This Is Not Happening
• DeadAlive
• Three Words
• Vienen
• Essence
• Existence

Season 9

• Nothing Important Happened Today
• Nothing Important Happened Today II
• Trust No 1
• Provenance
• Providence (DVD only)
• Jump the Shark (book only)
• William
• The Truth