The crew on a Russian Tanker bound for New Jersey are subject to murders by a humanoid sewer creature. Mulder is called to investigate the mysterious creature. Mulder and Scully have to find the creature before it produces more.
In a small town, full of ordinary people doing ordinary jobs a number of strange murders occur. Mulder and Scully are sent in to investigate what could be causing this unusual behaviour.
Mulder is begrudgingly assigned a new partner. The victims of a series of mysterious deaths are all Vietnam vets stationed at the same place during the war. One of the survivors seems to be after revenge but for what?
A former FBI agent claiming that he was kidnapped by a UFO takes three people hostage. Mulder and his new partner come to the aid, Mulder managing to swap himself for the hostages. Scully warns that he is a pathological and dangerous liar.
A crazed man attacks and kidnaps Scully. Mulder rushes to her rescue but it is too late. The kidnapper claims that he has offered Scully to aliens and Mulder accuses the military of knowing where she is and Mulder's new partner vanishes.
Mulder becomes caught up in a love triangle between himself, Kristin and Blood as he encounters a group of vampires who enjoy blood sports, and claim immortality. Has Mulder discovered a sect of modern day Vampires?
Just when hope is almost up Scully is found in a hospital on life support after her extensive disappearance. But this discovery only holds more unanswered questions, and her life still hangs in the balance. Mulder goes after the answer.
A team of volcanic geologist call on the help of Mulder and Scully after a team member dies. Mulder suspects a parasitic silicon based life form to be behind the team's discovery, but it is not just the parasite that is killing.
In a remote town of Wisconsin there is a cycle of teenagers going missing and turning up dazed with 'he/she is the one' written on their back. A local church and the town doctor are associated in a brainwashing scandal.
A nurse comes under attack by an invincible force in a nursing home, and to add more intrigue to this attack she was raped by this unseeable force. Mulder and Scully are called in to find answers to unravel this mystery.
In the town of Aubrey, Missouri, Detective B.J. Morrow experiences a frightening vision. In her mind's eye, she sees a man bury a corpse in a shallow grave. A pregnant woman experiences visions of serial killings that span half a century.
A man who works at a morgue is dismissed and takes out his fetish for mutilating dead bodies too far and turns to murder. He sets his sights on Scully who is disturbed by the case and has a dream about a demon tormenting her. Is it him?
A group of kids in the woods find an alter and play around, one of the boys recites a gibberish incarnation to scare his girlfriend. But as an evil spirit comes after all the kids in the wood, perhaps it wasn't gibberish after all.
Mulder and Scully investigate when two Marines stationed at the Folkstone government processing centre for Haitian refugees die in mysterious accidents. Mulder suspects that a voodoo curse caused the deaths of two Marines.
Mulder and Scully are after a murder that is caught up in a military scandal with the Russians, to make things more difficult the murderer can morph into other people. Mulder has family problems as well when his long lost sister turns up.
A bounty hunter who can morph into other people is on the loose and murdering people in his wake. Mulder and Scully are discovering that it could in fact be a cover up for an alien colony attempting to assimilate into society.
A powerful invisible force is sweeping Fairfield, Iowa that is maiming people to death. The local Zoo is experiencing difficulties as the animals are disappearing and then found dead. Are the animals and the invincible force connected?
Mulder and Scully are sent to Norway to investigate the mysterious disappearance and reappearance of a Naval Destroyer and the strange disease that has affected the only survivor of the crew.
Mulder and Scully arrive in a town in Florida which is completely inhabited by people with physical abnormalities, and soon learn that most of them work on the side shows circuits. The Agents need to find which one is on a killing spree.
A boy is run over by a miniature train, but in what seems to be an unfortunate accident intrigue arises, as the boy's still born twin brother could be responsible. Mulder and Scully must stop these spirits before they cause more harm.
Mulder and Scully are called in to find two escaped convicts. They soon find that these convicts need to be found more urgently than they thought, as they are carrying a deadly and highly contagious disease that could put people in jeopardy.
A scientist who partook in experimenting on himself has made his shadow a deadly weapon. Scully and Mulder are sent to find the man, but are pushed aside as the FBI mysteriously takes them off the case and the man vanishes.
A meat processing plant comes under scrutiny after several people mysteriously disappear from a small town. The mystery deepens when the agents discover dozens of human body's in the town lake. Could this town be eating itself to death?
Mulder stumbles upon some FBI top secret files which could answer some of the questions he has been yearning for. He traces the information on the files and finds that his suspicion about aliens could have been right all along.
Mulder and Scully pursue an escaped convict capable of passing through solid matter.
A writer who lives next door to Mulder becomes the prime suspect in a series of killings.
Arthur Dales' brother recounts a tale about a talented alien baseball player who hid amongst an all-African-American team in Roswell, New Mexico during the 1940s.
The Lone Gunmen are at a Defense Contractors Convention in Las Vegas trying to get inside information on military secrets.
A mystery involving two skeletons leads the agents on a journey in which nothing is quite as it seems.
Mulder believes that metallic objects discovered in Africa are proof that life originated elsewhere in the Universe.
Scully attempts to decipher the strange symbols covering a submerged spacecraft in hopes of finding a cure to Mulder's affliction before it's too late.
Scully frantically searches for Mulder after the Smoking Man takes him from a hospital to a place where all his problems are gone, or so it seems.