Season 4 Episode #1
Herrenvolk.

Mulder and Scully desperately try to protect the life of Jeremiah Smith. Not only is this mysterious man a link to the colonization plan-- his paranormal healing powers are Mulder's only hope of saving his mother's life. Close on their trail is the relentless alien bounty hunter: an assassin who is hard to escape. And harder to kill.

With the assassin close behind, Smith leads Mulder to an eerie, isolated farm community. There, Mulder is stunned to see clones of his sister Samantha, who had been abducted by aliens as a child. Smith tells Mulder that these children have been bred as worker drones. Before Smith can reveal more about the "Colonization" conspiracy, they are set upon by the alien assassin. Mulder is helpless to save Smith or Samantha.

Back in Washington, Scully's investigations into Smith's background lead her to a disquieting conclusion. All five of the identical men named Jeremiah Smith were secretly cataloguing the entire human population. But at whose orders? And why?

Meanwhile, the Cigarette-Smoking Man and the Elder have identified X as a traitor. He is ambushed and gunned down. As he dies, he leaves behind one last ambiguous clue: the letters "SRSG" scrawled in blood.

With his mother still in a coma, a despondent Mulder follows the last of his meager clues to the end of the line: the United Nations office of Special Representative to the Secretary General. An enigmatic official denies the Colony ever existed...as she hands him a folder containing photographs of the farm and of Samantha.

And finally, because "the fiercest enemy is the man who has nothing left to lose," the Cigarette-Smoking Man directs the Alien Bounty Hunter to heal Mulder's mother.

Season 4 Episode #2
Unruhe.

Northern Michigan. A young woman is kidnapped and her boyfriend murdered. Her passport photographs, taken only moments earlier, don't show the expected smiling portraits. Instead, they display nightmarish images of the terrified girl.

The photographs fascinate Mulder. Scully tries to find a logical explanation: the pictures were planted, or the film is damaged. But to Mulder, they are an example of "psychic photography": the paranormal ability to create images on film with the mind. Mulder theorizes that the suspect doesn't even know he possesses this gift...and that the photographs reveal the killer's darkest fantasies.

The kidnap victim is found: alive, but almost brain-dead. Her abductor had given her a primitive, botched lobotomy with an ice pick inserted through her eyes. Her mind almost gone, she endlessly repeats the word "unruhe.": the German word for "trouble" or "unrest." Soon, the kidnapper abducts and kills again.

Scully realizes that the same construction company had job sites near each crime scene. While Mulder is in Washington to examine the photos at the FBI labs, Scully follows up on her lead. She knows foreman Gerry Schnauz is the kidnapper by his terrified reaction to the word "unruhe." She arrests him.

Schnauz is a formerly institutionalized paranoid schizophrenic with a history of violence. When confronted by the photographs of his victims, he's startled at the sight of his own paranoid delusions brought to life on film. Admitting the crime, he tells them where to find his other victim. She too has been lobotomized.

Schnauz kills a guard and escapes from jail. He returns to the scene of the first crime to steal the camera and film. Mulder's blood runs cold when he sees exposed photographs of Schnauz's next victim: Scully! Now, Mulder's only hope of saving her is studying the photos to get deep inside Schnauz's mind.

In captivity, Scully, too, must use everything she knows about Schnauz to keep herself alive. But she can't talk him out of his delusions. It won't be long before he wields the icepick to rid Scully of the "unruhe" he believes is tormenting her.

Mulder's insight into the madman's mind leads him to Schnauz's dark den. With hardly a moment to spare, he shoots Scully's kidnapper. And finds one last series of psychic photographs: Schnauz -- shot dead on the floor

Season 4 Episode #3
Home.

Home, Pennsylvania.
An idyllic small town is the last place anyone would expect to find a hideously malformed newborn buried in a shallow grave. This gruesome discovery is enough for the local sheriff, Andy Taylor, to call in the FBI. Although the child's deformations indicate multiple genetic abnormalities, neither Mulder nor Scully believe this local tragedy is a matter for the X-Files: until they learn more about Home's reclusive Peacock clan.

For over a century, this farm family has lived on the outskirts of town...and the outskirts of civilization. Generations of inbreeding have deformed their bodies and their souls into something less than human, and more than animal. Now that the family has dwindled down to three brothers, Mulder and Scully suspect that the Peacocks have devised a grotesque plan to propagate their species...by forcing a kidnapped woman into involuntary pregnancy.

While someone (or something) watches unseen, Mulder and Scully explore the Peacock farm and find the bloody evidence of a recent birth. Before they can arrest the Peacocks, the family strikes back. Later that night, the Peacock boys massacre the sheriff and his wife. As Mulder says, "They went caveman."

Fearing for the life of the Peacocks' prisoner, Scully and Mulder courageously invade the farmhouse with only the local deputy as back-up. When they discover the hiding place of the clan matriarch, they finally comprehend the appalling truth. Mrs. Peacock, a multiple amputee, is the mother of the murdered infant. And also the proud mother of three sons who'll do anything for mom.

With guile, luck, and firepower, Mulder and Scully manage to kill two of the rampaging Peacocks. In the confusion, the oldest boy and Mrs. Peacock escape in their long white Cadillac. Mother and son drive off in search of a new place to call Home.

Season 4 Episode #4
Teliko.

Four African-American men have vanished off the streets of Philadelphia. An FBI/Police task force has come up with no leads...until the body of the most recent victim is discovered. Surprisingly, violence isn't the cause of death. The body's bizarre lack of pigmentation hints at some unknown ailment. The Centers for Disease Control calls in Scully to unravel the medical mystery.

Mulder, however, believes that more than a simple pathogen is involved. His investigations lead to a cover-up of a similar death on a flight from West Africa, and the presence of a toxic plant native to that area. Meanwhile, Scully discovers that the victim's pituitary gland-- which produces melanin among other hormones--has somehow been destroyed.

While their investigation is under way, the killer strikes again. This time a young black student is stalked and kidnapped from a bus stop. The evidence leads Scully and Mulder to a recent West African immigrant, Samuel Aboah. They arrest him when he attempts to escape. Hospital tests reveal that, among other peculiar abnormalities, Aboah lacks a pituitary gland.

A tip from his UN informant sends Mulder to Minister Diabira, a diplomat from the West African country of Burkina Faso. Reluctantly, Diabria admits he had ordered the cover-up of the first murder -- because he knew the identity of the killer. It was one of the mythical Teliko: evil spirits of the air, who emerge at night to suck the life and color out of their victims. Who would have believed that a terrifying West African folktale could come to life in 20th century America? No one...except Mulder.

Mulder explains his theory to a skeptical Scully: the Teliko are not ghostly entities, but members of a lost African clan, who have survived over generations by hunting down other humans to steal what they lack: hormones from the pituitary gland.

Aboah escapes the hospital. In the ensuing manhunt, Aboah captures Mulder. Scully comes to Mulder's aid and shoots Aboah just in time to save Mulder's life. And the truth about the Teliko is destined to die along with him.

Season 4 Episode #5
The field where i died.

Apison, Tennessee, once the site of a Civil War battle, is now the home of the Temple of the Seven Stars, a doomsday religious cult that believes in reincarnation. A member named "Sidney" calls the FBI with accusations of child abuse and weapons stockpiling. Fearing another Waco or Jonestown, the BATF and the FBI lead a joint raid on the compound. No weapons are found. Neither is Vernon Ephesian, the cult's dangerously charismatic leader, who dominates his followers with a mix of Biblical prophecy, New Age channeling and old-fashioned intimidation.

An odd compulsion leads Mulder to search a nearby field where he finds an underground Civil War bunker concealing Ephesian and his six wives--all on the verge of committing mass suicide. One of the wives, Melissa, catches Mulder's attention. She feels somehow familiar to him. Ephesian, his wives and the cultists are taken into custody. But with no evidence of abuse or illegal weapons, the FBI can hold them for only one day. Mulder and Scully are assigned to interrogate Ephesian and his wives. Preaching fire and brimstone, Ephesian admits nothing.

Melissa is a different story. Under questioning, this withdrawn and hostile girl suddenly shifts personalities into the mysterious informant Sidney, a gruff male New Yorker. But somehow Mulder knows Melissa's case is even more unusual than Multiple Personality Disorder. He is certain that "Sidney" is one of Melissa's past lives. Scully, who has a hard enough time with MPD let alone reincarnation, can't understand why Mulder is so obsessed with Melissa, and so certain he is right.

Then comes a revelation that surprises even Mulder. Melissa shifts into yet another identity: a Civil War nurse named Sarah Kavanaugh. She tells them she watched as her fiancee Sullivan Biddle died in the aftermath of the long-ago battle. And that Biddle is one of Mulder's past lives. Mulder unconditionally believes her. Desperate to discover the truth...Mulder has himself regressed.

Scully listens as Mulder cycles through a series of his past lives. He says that same souls reincarnate together over and over again: he, Samantha, Scully, even the Cigarette-Smoking Man are destined to play out many lifetimes together. Melissa and Mulder are soulmates...fated always to be star-crossed lovers.

The current Melissa hears Mulder's story, but she won't allow herself to believe. She returns to Ephesian. Scully doesn't know what to think--especially when she discovers photographs of Sarah and Sullivan in historical archives.

After Ephesian and his cultists are released, everyone's worst fears come true. Ephesian leads the cult in a mass suicide. Mulder discovers the body of Melissa...clutching the photograph of Sarah Kavanaugh in her hand.

Season 4 Episode #6
Sanguinarium.

Everyone wants to be beautiful. And the Aesthetic Surgery Unit of Chicago's Greenwood Memorial Hospital can make anyone more attractive...for a price. For one patient thought to be undergoing a scalp-reduction the price is a grisly death, when Dr. Lloyd goes insane during surgery and performs a violent liposuction instead...and literally sucks the life blood out of the man.

Scully and Mulder are called in to investigate the doctor's unusual defense: demonic possession. Scully logically assumes the doctor's sleeping pill addiction caused a psychotic break. When Mulder discovers evidence of a pentagram--an occult symbol of protection-- on the floor of the operating room, he concludes that some kind of magic is at work. Scully is dubious, to put it mildly. Another surgeon goes into an uncontrollable frenzy, using a laser to burn through the flesh of a patient's face . Mulder discovers the mark of the pentagram on this body as well -- placed there by Nurse Waite, a practicing witch.

Dr. Franklyn admits that Nurse Waite worked at the clinic ten years earlier when similar deaths had occurred. Scully and Mulder search her house, finding a spooky den of candles, incense, herbs and witchy objects. But Nurse Waite is gone. She's lying in wait for Dr. Franklin; submerged in a tub full of gore in his bathroom. Her sneak knife attack fails, and she's arrested.

Before Nurse Waite can explain herself to Mulder, she dies horribly, in what Mulder recognizes from Nurse Waite's occult books as a classic case of death by hex. Waite was trying to protect the patients...but against what or whom? Maybe Dr. Franklyn -- who smiles inscrutably as he levitates a few feet above his bed.

Putting all the clues together, Mulder deduces that Franklyn is a black magician. Cursed with the sin of vanity, Franklyn transforms his looks beyond the limits of surgery: using sorcery and human sacrifice. Ten years ago, he had escaped suspicion. Today, he manages to escape even Mulder. Mulder is too late to stop the final sacrifice that completes the spell. Dr. Franklyn slices off his own face, to disappear forever...

...And the classically handsome Dr. Hartman is welcomed aboard at a Los Angeles cosmetic surgery clinic.