Investigating terrifying true hauntings from the case files of America's first ghost hunter, Dr. Hans Holzer.

The team reopens a legendary ghost hunter's 50-year-old case of rampant paranormal activity at one of the oldest houses in Rye, New York.

The team revives Hans Holzer's investigation of the Ocean-Born Mary House in Henniker, New Hampshire. They boldly wade into the dark waters of New England folklore in search of the elusive truth behind the mysterious haunting.

The team relaunches a case that eluded Hans Holzer his whole life: the Howard-Dickinson House in Henderson, TX. Their investigation reveals that local lore about the historic home may contain a dark family secret.

When Hans Holzer visited the Ayers-Allen House in Metuchen, NJ, in 1960, he found entities dating back to colonial times. Now his case file is reopened, and the team discovers the spirits there may have a more ominous origin.

The team heads to San Diego to visit the Whaley House, deemed as the most haunted home in America. Their harrowing investigation reveals a dark presence may still be influencing the living in an attempt to fulfill a centuries-old vendetta.

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

The team reopens one of Hans Holzer's most tragic cases, revealing poltergeist activity he saw 50 years ago in Tyler, Texas, is disturbingly similar to unexplained activity terrorizing a family today.

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, NJ. Their exploration of the lavish mansion reveals a woman's recurring nightmares may have a supernatural source in the dwelling's dark history.

The team reopens Hans Holzer's unsettling investigation of the infamous Barnstable House in Cape Cod, Massachusetts. They discover the tragic spirits from the property's past may still be seeking a horrific reckoning with the living.

Investigating terrifying true hauntings from the case files of America's first ghost hunter, Dr. Hans Holzer.

Investigating terrifying true hauntings from the case files of America's first ghost hunter, Dr. Hans Holzer.