Jack and Katrina travel to Juneau, Alaska, to conduct the first-ever investigation of the Alaskan Hotel; built for luxury, the historic hotel has developed a reputation for demonic activity due to its notorious criminal past.

It's a real-life case of the Phantom of the Opera as Jack and Katrina descend on the sleepy town of McConnelsville, Ohio, to investigate a majestic old theater long rumored to be haunted by a host of sordid spirits.

Jack and Katrina are in serious danger as they investigate a Kentucky honky-tonk considered by many to be the most haunted place on Earth and the location of an actual portal to Hell.

Jack and Katrina travel to Philadelphia to gain unprecedented access to never-before-investigated areas of Eastern State Penitentiary; the team explores sites where unimaginable suffering and death took place.

Jack and Katrina travel to Pennsylvania to investigate a 19th-century estate brimming with paranormal activity that many believe is fueled by the property's shadowy history of untimely deaths, witchcraft and an ancient Native American curse.

In Weston, W. Va., Jack and Katrina venture inside the walls of a haunted hospital that once housed thousands of mentally ill patients; their investigation uncovers mind-blowing truths that lead to an intelligent conversation with the other side.