The investigation of Northern State Hospital took place on July 26-27, 2007, according to the date embedded in the thermal camera footage.
Investigation 1: Northern State Hospital - Sedro-Woolley, Washington
Dan Singleton - Facility Manager
Jessica Von - Eyewitness
Judith Holmes - Administrative Assistant
Richard Valentine - Movie Director
Investigation 2: Underground Tunnels - Seattle, Washington
David Clavey - Client
Ross Allison - Eyewitness
Rick Bortel - Employee
Kris: I joined TAPS because I had an experience when I was little. My great grandmother came to me shortly after she passed. She said goodbye, she smiled in my room. It kind of made me stop and think. So I'm basically here to find some answers for myself and for my own beliefs.
Dave: (walking through the underground tunnels with equipment) We should put breadcrumbs, or something.
Grant: So the high tide would come in, fill up the sewer pipe, the back pressure would blow the toilet right off.
Jason: That would a Roto Rooter nightmare, huh?
Grant: No, it'd be dream come true! Think how many toilets you could replace!
Grant: I'm just not sure if I'm disappointed that no prostitute showed up or, you know, 'cause that would have been nice, but I don't know what I would have told my wife.
Jason: Good point.
Grant: 'I got petitioned by a paranormal prostitute.'
First appearance of Kris Williams.
On its first airing, this episode was erroneously announced as the "season premiere". The SciFi Channel website and the official DVD set, however, both list it as a continuation of the third season.
As of this episode, Dave Tango goes from "Investigator-in-Training" to a full investigator.