The team reopens Hans Holzer's 50-year-old case documenting rampant paranormal activity at one of the oldest houses in Rye, N.Y., to find out if its tortured souls have finally moved on or simply moved.

The team resurrects ghost hunter Hans Holzer's case file on the haunted Morris-Jumel Mansion in New York City to investigate a dark, mysterious presence residing within the historic home.

The team investigates San Diego's infamous Whaley House, deemed by Hans Holzer as the most haunted house in the United States, to discover if the home's ghostly occupants are pursuing a dangerous vendetta.

The team resurrects one of Hans Holzer's most tragic cases; the team members investigate unexplained activity terrorizing a family, and it is disturbingly similar to poltergeist activity witnessed by Holzer 50 years ago in Tyler, Texas.

The team reopens Hans Holzer's investigation into a Revolutionary War-era warship in Baltimore Harbor; they discover the spirits of the ship's deep, dark past may still be manning their positions on a postmortem mission.

The team resurrects Hans Holzer's investigation of a mysterious castle in Paterson, N.J.; their exploration of the lavish mansion reveals a woman's recurring nightmares may have a supernatural source in the dwelling's dark history.