| # | Episode Name | Description | Quotes | Tag Line | Credits | Air Date | Rating |
| 1 | "Redux" | The First Part of the Fifth Season Première | ALL LIES LEAD TO THE TRUTH | W: Chris Carter D: R. W. Goodwin |
1997-11-02 (Sun.) | TTTTT | |
| 2 | "Redux II" | The Second Part of the Fifth Season Première | THE TRUTH IS OUT THERE | W: Chris Carter D: Kim Manners |
1997-11-09 (Sun.) | TTTTT | |
| 3 | "Unusual Suspects" | The Lone Gunmen Episode | "So, what I'm looking at here is a warehouse break-in with nothing stolen, a shoot-out but no guns, lots of blood but no bodies, and an F.B.I. agent who likes to take off all his clothes and talk about space aliens. Fill me in." | " | W: Vince Gilligan D: Kim Manners |
1997-11-16 (Sun.) | TTTT |
| 4 | "Detour" | The Moth-Men Episode | " | W: Frank Spotnitz D: Brett Dowler |
1997-11-23 (Sun.) | TTTTT | |
| 5 | "The Post-Modern Prometheus" | The Black-and-White Episode | "Why would you do that?" "Because I can!" |
" | W: Chris Carter D: Chris Carter |
1997-11-30 (Sun.) | T |
| 6 | "Christmas Carol" | The First Christmas Episode | " | W: Vince Gilligan, John Shiban, Frank Spotnitz D: Peter Markle |
1997-12-07 (Sun.) | TTTTT | |
| 7 | "Emily" | The Second Christmas Episode | " | W: Vince Gilligan, John Shiban, Frank Spotnitz D: Kim Manners |
1997-12-14 (Sun.) | TTTTT | |
| 8 | "Kitsunegari" | The Second Mind-Control Episode | "Well, the hand it's in is pretty sloppy, but I think it's supposed to be 'kitsunegari'. 'Foxhunt'." | " | W: Vince Gilligan, Tim Minear D: Daniel Sackheim |
1998-01-04 (Sun.) | TT |
| 9 | "Schizogeny" | The Trees Episode | " | W: Jessica Scott, Mike Wollaeger D: Ralph Hemecker |
1998-01-11 (Sun.) | TT | |
| 10 | "Chinga" | The Doll Episode | "You didn't find a
talking doll, did you, Scully?" "No, no. Of course not." "I would suggest that you check the back of the doll for a - a plastic ring with a string on it. That would be my first - Hello?" |
" | W: Chris Carter, Stephen King D: Kim Manners |
1998-02-08 (Sun.) | TTTT |
| 11 | "Kill Switch" | The Computer Programme Episode | " | W: William Gibson, Tom Maddox D: Rob Bowman |
1998-02-15 (Sun.) | TT | |
| 12 | "Bad Blood" | The Vampire Episode | "Well, it's
obviously not a vampire." "Well, why not?" "Because they don't exist?" |
" | W: Vince Gilligan D: Cliff Bole |
1998-02-22 (Sun.) | TTTT |
| 13 | "Patient X" | The First Episode with Cassandra Spender | " | W: Chris Carter, Frank Spotnitz D: Kim Manners |
1998-03-01 (Sun.) | TTT | |
| 14 | "The Red And The Black" | The Second Episode with Cassandra Spender | RESIST OR SERVE | W: Chris Carter, Frank Spotnitz D: Chris Carter |
1998-03-08 (Sun.) | TTT | |
| 15 | "Travelers" | The McCarthyism Episode | THE TRUTH IS OUT THERE | W: John Shiban, Frank Spotnitz D: William A. Graham |
1998-03-29 (Sun.) | TT | |
| 16 | "Mind's Eye" | The Blind Girl Episode | " | W: Tim Minear D: Kim Manners |
1998-04-19 (Sun.) | TT | |
| 17 | "All Souls" | The Angels Episode | " | Story: Dan Angel, Billy Brown Script: John Shiban, Frank Spotnitz D: Allen Coulter |
1998-04-26 (Sun.) | TT | |
| 18 | "The Pine Bluff Variant" | "You're suspicious Agent
Mulder's betrayed his country." "I don't know what you're talking about." |
" | W: John Shiban D: Rob Bowman |
1998-05-03 (Sun.) | TTT | |
| 19 | "Folie à deux" | "Folie à deux. A madness shared by two." | " | W: Vince Gilligan D: Kim Manners |
1998-05-10 (Sun.) | TT | |
| 20 | "The End" | The End | THE END | W: Chris Carter D: R. W. Goodwin |
1998-05-17 (Sun.) | TTTT |