Season 4 - Episode Guide

Nick and Katrina spend 72 hours confined in one of the UK's most notorious haunted hotspots - Shepton Mallet Prison. They investigate the spirits locked inside.

Nick and Katrina immerse themselves in the vast Drakelow Tunnels. They investigate the stories of shadowed figures and dark entities that lurk underground.

Powerful spirits are said to haunt the historic Royal Oak Pub and its owner. Nick and Katrina try to investigate why the spirits are unable to rest in peace.

To help the new owner of the Abandoned Park Hotel, Nick and Katrina explore the claims of ghostly activity and echoes of the once-luxurious property's past.

A family hit by decades of hauntings calls Nick and Katrina for help. But, during their investigation, they find the activity may have an unexpected origin.

Nick and Katrina have researched the haunting at Newsham Park Hospital for years. After 72 hours in the former orphanage, they question their preconceptions.

The sprawling Margam Castle property has been considered sacred land for over 4,000 years. Nick and Katrina must face a lurking presence in the decadent Welsh home.

Nick and Katrina pursue a negative presence in the haunted Mill Street Barracks. During their investigation, they are followed by an unexpected entity.

The historic Hinchingbrooke estate has hosted English royalty and nobles - but it also reportedly harbours a horrific haunting. Nick and Katrina investigate.

Facebook Exclusive: What happened when Nick Groff & Katrina Weidman spent the afternoon in an abandoned tube station