Paranormal Lockdown was a paranormal reality television series that was executively produced by Nick Groff, formerly of Ghost Adventures. The series followed Nick Groff and fellow paranormal researcher Katrina Weidman (formerly of Paranormal State) as they confine themselves for 72 straight hours in what they claim to be some of the most haunted locations.
The series features Nick Groff, a paranormal investigator who is "on a mission to discover something new in the paranormal field", and paranormal researcher Katrina Weidman who both spend 72 hours together in reportedly haunted places. Groff and Weidman believe that "the longer they stay, the more the spirits will communicate with them and the more information they can gather about the unknown". The opening introduction for the show is: