The new owners of Waverly Hills Sanatorium near Louisville, Ky., receive reports of unsettling paranormal claims, including blood-curdling screams and unexplained sounds, from visitors.

Disturbing paranormal activity at the Glenn House in the small town of Cape Girardeau, Mo., prompts the local historical association's president to reach out to Grant for help; as the investigation begins, the house quickly lives up to its claims.

Paranormal activity at the Wendover Airfield in Utah causes the staff to fear for its safety; the team investigates reports from a full-bodied apparition of a World War II soldier to a mysterious blinding light.

Since the Galena Marine Hospital's recent purchase, distressing paranormal activity has been reported and the current owner calls upon the Ghost Hunters for help; the team hears claims of heavy footsteps, six-foot shadow figures, and light anomalies.

The team treks to Haines, Alaska, where paranormal activity is reported at the Hotel Halsingland, a converted former military outpost in a region where many once lost their lives due to extreme weather conditions, starvation and bloody conflicts.

The Perry-Mansfield Performing Arts Camp deep in northern Colorado forestland is plagued by reports of unsettling paranormal encounters; in the first professional investigation of the site, Grant sends the team ahead to begin without him.

Fort Stanton in New Mexico is established in the 19th century as a military post, then converted into a tuberculosis hospital; reports of paranormal activity date back to the 1940s, but a recent uptick in claims causes concerns about staff safety.

On their second night of investigation in the remote mining town of Clifton, Arizona the team revisits several hubs of paranormal activity as they try to get to the bottom of the aggressive phenomena. Grant, Brandon and Brian have a breakthrough in the Boarding House, where they establish direct communication with a troubled soul. Meanwhile, the rest of the team expands the search perimeter.

Since its founding in 1873, the remote mining town of Clifton, AZ has been trapped in a devastating cycle of violence, mayhem, and natural disaster. But despite its many struggles, Clifton remains home to a small population. Along with its brutal past comes a long history of dark paranormal experiences in the town, which has many residents convinced that Clifton may be cursed. Isolated and concerned the town may no longer be safe for their families, the townspeople have turned to the Ghost Hunters to investigate the continuous paranormal activity and the connection, if any, to Clifton's history of death and misery.