Kicking off a new season, Nick and Katrina pull back the curtain on their investigations, with never-before-seen footage. Then, while untangling the mysteries of Monroe House, the spirits lead Nick and Katrina to uncover the haunting's chilling sources.

Nick and Katrina unlock the foreboding secrets of HM Prison Shrewsbury in England, facing down over 200 years of executions, anger and tragedy.

Nick and Katrina must determine if a historic manor in Middleboro, Massachusetts is unsafe for tourists to explore. But while Katrina investigates haunting's beyond the house, for Nick, the paranormal activity hits too close to home.

St. Ignatius Hospital in Colfax, Washington, has been abandoned since 2003, but is hardly uninhabited. Passersby and workers report lurking shadows and disembodied shrieks echoing through the halls.

Nick and Katrina set out to document the elusive shadow figures lurking within the expansive corridors of Waverly Hills Sanatorium in Louisville, Kentucky.

The team is called to Bellaire, OH, to help a bereft mother identify the dark energy forcing her family to flee their home. With help from paranormal engineers George Brown and Steve Huff, they gain chilling evidence about the spirit's evil intentions.

In their largest investigation to date, Nick and Katrina will spend 72 hours exploring the Statler City Hotel in Buffalo, NY. They soon discover that the ghostly remains of the hotel's sordid underground history may have no intentions of staying buried.

Nick and Katrina spend 72 hours in Whitehill Mansion. While they gather visual evidence of a child in the attic, they question if all the spirits they encounter are that innocent.

Drawn to small town Iowa by reports of aggressive shadow figures, Nick and Katrina venture to the harrowing halls of Malvern Manor for 72 hours in an attempt to capture evidence of the fearsome phenomenon.

On the 10th anniversary of New Orleans' most gruesome murder, the death of Addie Hall by her boyfriend Zack Bowen, Nick and Katrina return to the scene of the crime to find what spirits still remain.

After the owner's tragic death, a Victorian mansion reportedly curses all who live inside, and Nick and Katrina find the curse may be even more dangerous than they anticipated.

Nick and Katrina delve into uncharted territory in a haunted jail in Savannah. Riddled by phantom noises, they suddenly find that they are not the only ones locked in the Old Chatham County Jail.