Nick and Katrina use state-of-the-art experiments to learn why spirits are locked inside Shepton Mallet Prison -- one of the UK's most notorious haunted hotspots.

Paranormal experts Nick and Katrina immerse themselves within the buried horrors of Drakelow Tunnels and find other souls locked inside.

Nick and Katrina spend 72 hours in The Royal Oak Pub after the owner is brought to tears by the historic property's powerful spirits.

Paranormal investigators Nick and Katrina check in for a 72-hour stay at England's abandoned Park Hotel to explore the claims of ghostly activity at the once-luxurious property.

A family plagued by decades of hauntings calls upon Paranormal Investigators Nick Groff and Katrina Weid for help. But over the course of their 72-hour investigation, they find the sinister haunting may have an unexpected origin.

Nick and Katrina spend 72 hours inside Newsham Park Hospital -- a former orphanage that makes them question all their preconceptions of the powerful haunting.

Nick and Katrina delve into the paranormal past of Margam Castle -- a property considered sacred for over 4,000 years.

Nick and Katrina pursue a negative presence in the haunted Mill Street Barracks and find themselves followed by an unexpected entity.

Nick and Katrina discover what's lurking in the wings of the Kenton Theatre's storied stage.

Nick and Katrina spend 72 hours inside the Hinchingbrooke House -- a historic estate that's hosted not only English royalty and nobles but also reportedly harbors a horrific haunting.