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 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

A devout Baptist family from Indiana's alleged battle with demonic forces is recalled.

Medical professionals from different hospitals in the U.S. reveal their alleged encounters with ghosts.

A newly built home in California becomes a hotbed of paranormal activity, the spirits in question turn out to be the victims of Charles Manson and his cult.

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.

Five werewolves hold a family hostage in their own home.

An innocent man is haunted by the face of the saint of the criminal underworld.

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

The story of a property developer who turned an old lakeside mansion into apartments unaware that the home was once used as a refuge for tuberculosis sufferers in the 1920s.

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

A family believe they are being haunted by a homicidal foster father and a sister trying to prove she's innocent of murdering her brother.

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

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.

A spirit masquerades as a child.

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

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

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

Stacey Hayes manages an abandoned hospital's renovation and witnesses alarming paranormal events; the investigators she calls for help then get trapped and attacked by the forces.

A loving Christian family are shocked to discover that their eldest son has entered into a deadly contract with the devil, which is why a mysterious and evil "Tall Man" is stalking their home.

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.

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