An exorcist is schooled in the ancient procedure at the Vatican in Rome.

The parents of five girls claim that malevolent forces terrorized them physically and even put a life-threatening curse on the family, which resulted in a near-fatal incident.

Senior American airmen see alien crafts near a nuclear base in Suffolk, England.

Bill Vaile, a former NASA engineer comes face to face with the paranormal after witnessing what looked like an exorcism while at a job site.

The origins of a Dybbuk Box, which is said to contain a malevolent spirit, is investigated by its owner after it supposedly created havoc in the lives of two previous owners.

A Pennsylvania politician finds himself doing battle with the ghost of a murderous doctor that haunts his home, and also an ancient pagan god that the doctor once worshipped.

The story of newlyweds in Chicago who come to believe their home is haunted and uncover disturbing information about the former occupants.

The story of an alleged alien abduction is told by the people who were involved.

A family claim they are being torn apart by a life-size doll, which they fear is possessed and after their 6-year-old daughter's soul.

Three female college students claim that they are being terrorized by a demon woman hell-bent on tearing their lives apart.

The Pracht family encounters 19th-century murderer Stephen Richards in their new home in the plains of Nebraska.

A spirit masquerades as a child.

A family fears their Indianapolis mansion is haunted by the serial killer who previously resided there.

A young mother must protect her children from the unruly spirit that's haunting her house.

Three young college students recall moving into a rental property in a rundown Savannah neighborhood and coming face-to-face with the ghost of a demented crack fiend.

Season 3 begins with the story of a firefighter's widow who feared for the safety of her daughters after unknowingly purchasing a home that once belonged to devil worshipers.

A war veteran takes a new job in Lawton, Okla., but the fresh start that he and his brothers decide to make together turns nightmarish when a malignant demon known as the Zozo enters the picture.

A family learns that their new Connecticut home was once a funeral parlor, and soon strange incidents occur within its walls.

A ghostly mayor from the Wild West battles a mother and her daughters.

A couple camping in the desert see lights in the night sky and figures descending to Earth, and unlock the truth of their alien abduction with hypnotism.

Three brokenhearted women renting an old house together seek a fresh start, but instead get what they believe is a supernatural tormentor who is preaching about hell and brimstone.

A young couple on a sightseeing trip to Point Pleasant enters an old munitions bunker and unwittingly awakens the infamous Mothman - a harbinger of doom that follows them home and subjects them to a reign of terror.

Author Harper Lee once traveled to Alabama to research an enigmatic preacher accused of murder, and writer Jenny Scott follows in her footsteps.

A creature with 14 inch feet is tracked to a cabin in the woods of London, Ohio; and in North Carolina, a man claims to see an apparition of a red haired girl running across his backyard.

The story of a coven of witches who supposedly trapped people in a Southern plantation house that's now allegedly haunted.

In the Season 4 finale, a couple feel blessed to move into a home that once belonged to their daughter's great-grandmother. That is, until they come to fear that another deceased relative wants them gone.

A family are fearful of what they describe as a darkness that lurks beneath the inky water of a pond at the back of their property.

Detention officer Jay Yates works the night shift at the infamous Estrella Jail, where a sinister spirit is driving both inmates and officers to insanity and death.

Life turns hellish for three young girls from a Hispanic family after they break the rules when playing with a Ouija board.

A family who moves into a home in a small southern town experience activity caused by a malevolent entity named "The Bad Man" who in life was a child molester.

In the Season 4 premiere, the owners of an abandoned motel are pushed to the brink of evil.

The story of a psychic detective who helped track down a serial killer in New Jersey.

An academic and his wife buy a Southern home only to learn that a jilted socialite committed suicide there and is now believed to haunt the house.

The ghost of a Victorian era mother may be haunting the home of newlyweds.

A 5-year-old girl in Baltimore befriends an invisible girl named Emily, a seemingly harmless playmate who becomes malevolent toward the girl's family, and a mother and daughter encounter a mysterious girl in Florida in the debut of the documentary series exploring personal accounts of paranormal experiences.

A couple with no children feel like they are being haunted by the son they never had.

Three brothers share their experience of reuniting on a family farm and the disturbing memories they each encountered from their childhood.

The owners of a restaurant in El Paso are convinced that during renovations to the place they inadvertently opened a portal to the spirit world