Paranormal Lockdown with Nick Groff

Nick and Katrina use high-tech equipment to face down the dark spirits in one of America's most notorious haunted hotspots - Bobby Mackey's Music World.

After Nick and Katrina found human bones in their first lockdown at the Monroe House, they thought the case was closed. Now they return to explore further.

Nick and Katrina are in the historic Jim Beam Distillery, exploring employee claims that bourbon is not the only spirit locked inside its huge warehouse.

The Cambria County Jail in Pennsylvania housed the area's worst criminals and executions took place there in its early days. Nick and Katrina examine its hauntings.

A threatening presence brings the constructions on the Beattie Mansion to a halt. Nick and Katrina use cutting edge experiments to lure out the ominous spirits.

A house in Hinsdale, New York draws Nick and Katrina to investigate its demonic past, and Nick is caught in a psychological war against good and evil.

Nick and Katrina investigate a Victorian mansion's haunted secrets. Over the course of their investigation, they capture unnerving voices pleading for help.

Nick and Katrina investigate a haunted Asylum. What they capture on their third night of confinement can only be described as completely terrifying.

When Nick and Katrina arrive to investigate hauntings inside a long-shuttered infirmary, they are alarmed to discover not every resident has left.

When a hotel in Kentucky closed its doors, not everyone checked out. Over their 72-hour confinement, Nick and Katrina watch as their cameraman is savagely bitten.

Nick and Katrina seek answers on who is haunting the infamous Kreischer Mansion. Legend states that during the late 1800s several s?ances were conducted there.

Nick and Katrina head to Massachusetts to investigate a colonial estate's tragic history. But for Nick, the paranormal activity hits too close to home.

Nick and Katrina unlock the dark secrets of HMS Shrewsbury Prison in England, exploring 200 years of executions, anger and tragedy - and discovering new threats.

Nick and Katrina spend 72 hours untangling the mysteries of Monroe Demon House. But while Katrina engages with the occult, Nick engages with a dark presence.

The 120-year-old St. Ignatius Hospital in Washington has been abandoned since 2003, but is hardly uninhabited. Nick Groff and Katrina Weidman check in.

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 to capture evidence.

The team seeks out the elusive shadow figures lurking in the Waverly Hills Sanatorium in Kentucky. They use high-tech kit to catch shocking new paranormal evidence.

The team is in Ohio to help a mother identify the dark energy forcing her family to flee their home - and find chilling evidence about the spirit's evil intentions.

In their biggest investigation yet, Nick and Katrina spend 72 hours exploring the Statler City Hotel in Buffalo, NY - and uncover its sordid underground history.

Nick and Katrina are at New Jersey's White Hill Mansion. While gathering evidence of a child in the attic, the mansion's history as a mob hangout raises concerns.

Nick and Katrina spend 72 hours in the home of New Orleans' most gruesome murder - the grisly death of Addie Hall at the hands of her boyfriend, Zack Bowen.

After the owner's tragic death, a Victorian mansion is said to curse all who inhabit it. As Nick and Katrina stay at Illinois' most haunted house, do they risk danger?

Nick and Katrina explore uncharted territory in the haunted Old Chatham County Jail in Savannah, and are hit by phantom noises in their 72-hour confinement.

Nick, Katrina and fellow enthusiast, Aaron Sagers, recount their 72-hour investigations with unseen footage and in-depth evidence analysis.

Nick and Katrina submerge themselves among the spirits of West Virginia's Old Sweet Springs Resort. What lurks beneath the surface at this once-idyllic retreat?

Nick and Katrina go to Wildwood Sanitorium. After its conversion into apartments, tenants reported an unnerving male presence and furniture being rearranged.

An unknown spirit lurks in the empty hallways of Ohio's Higginsport School. Is it evidence of a darker haunting caused by recent deaths on the property?