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Since its founding in 1873, the remote mining town of Clifton, Ariz., is trapped in a devastating cycle of violence, mayhem and natural disaster. Along with the town's brutal past comes a long history of dark paranormal experiences.

On their second night in the remote mining town of Clifton, Ariz., 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.

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.

The Perry-Mansfield Performing Arts Camp, deep in Northern Colorado forestland, has long been plagued by reports of unsettling paranormal encounters. Today, campers and faculty there still experience paranormal activity. In the first professional investigation of the site, Grant sends the team ahead to begin without him. Later, when Grant joins the team, he proposes a creative tactic that triggers some unexpected results.

Between 1896 and 1899, countless fortune seekers set out on a voyage to the Klondike region of North America in search of gold. Many had to pass through the small and secluded town of Haines, Alaska. For some, however, Haines was the end of the journey as many lost their lives due to extreme weather conditions, starvation, or bloody conflicts. Due to the violence and disorder, the government established a military outpost to keep the peace. Today, the outpost remains and has since been converted, in part, into a hotel called Hotel Halsingland, where concerning ...

Deep in the woods of Galena, Illinois, a hospital is frozen in time. Built in 1857, the Galena Marine Hospital has seen countless deaths. Since its recent purchase, distressing paranormal activity has been reported; and the current owner, Frank, calls upon the Ghost Hunters for help. The team travels to meet with him and several witnesses; and they hear claims of heavy footsteps, six-foot shadow figures, and light anomalies.

The Wendover Airfield, a onetime Army Air Force Base in the salt flats of the Utah desert, played a crucial role in WWII. During training, dozens of pilots died on the base. Now, recent reports of paranormal activity there have stirred speculation; and the reported hauntings cause the staff to fear for their safety, and for that of the ordinary citizens who travel in and out of the base. Desperate for answers, they've called upon the team for help.

More than a century ago, when the Glenn House was built in the small town of Cape Girardeau, Missouri, it housed the family of David Glenn, a successful local businessman - until they tragically lost three of their infant children and later went bankrupt. Today, generations later, the historic residence still stands. A rise in disturbing paranormal activity, however, has prompted the local historical association's president to reach out to Grant for help.