Season profiles
1. Little Green Men: After the xfiles have been closed and the agents have been reassigned Mulder learns of a filmed sighting of a UFO in Peurto Rico.
2. The Host: After the deaths of several men with unusual bite marks Mulder finds that he is hunting a genetic mutant which stalks the sewers.
3. Blood: The residents of a small town go mad and Mulder believes that it's because of subliminal messages.
4. Sleepless: Mulder gets assigned a new partner adn goes on the trail of a military experiment involving sleep deprivation.
5. Duane Barry: Part 1 of 3. A man takes an office hostage to try to stop himself being abducted and manages to get Sculley abducted instead of himself. (File 3)
6. Asensions: Part 2 of 3. With sculley missing Skinner reopens the xfiles. (File 3)
7. 3: Mulder investigates a trio of vampires.
8. One Breath: Part 3 of 3. Sculley reappears in a coma. (File 3)
9. Firewalker: The reunited pair investigate the disappearance of a volcano research team.
10. Red Museum: A series of missing time cases lead to a cult known as the Red Museum.
11. Excelsius Dei: A nurse in an old age home claims to have been attacked by a ghost and asks for the agents help.
12. Aubrey: A earlier serial killer seems to have resurfaced leading the pair off to Aubrey ,Texas.
13. Irresistable: The agents investigate a man who collects the hair an fingernails of his victims.
14. Die hard Die Vertiz: Mulder and Sculley investigate witchcraft.
15. Fresh bones: The pair investigate a murder in a refugee camp which leads to a voodoo preist.
16. Colony: Part 1 of 2. When two clones are killed Mulder stumbles across a woman who claims to be his sister. (File 4)
17. End game: Part 2 of 2. Mulder must give his sister over to the bounty hunter to save sculley but finds that samantha's not all she appears to be. (File 4)
18. Fearful Symmetry: Animals seem to be escaping from cages at a zoo and Mulder believes that it's alien abductions.
19. Dod Kalm: The duo find an aging chemical on a navy destroyer and it turns out to be a risk to their own youthful complexions.
20. Humbug: The agents discover a town full of side show freaks where bodies keep appearing with bites bitten out of them.
21. The Calmsari: A grandmother tries to convince the agents that her grandson is responsible for his brothers death because he's possessed by evil.
22. F. Emasculeta: There's a deadly contagent on the loose and the government seems to be involved.
23. Soft Light: After sculley is asked to help out an old friend she finds a scientist with a deadly secrete.
24. Our Town: A disappearance, a chicken factory and multiple cases of CJD lead to a cannabalistic ritual too horrible to imagine.
25. Anasazi: Part 1 of 2. A computor hacker leaves mulder a disc containing all the information about alien abductions and the pair must try to decode it before Cancerman finds the evidence. (File 1)