Ghost Adventures travels to Deer Lodge, MT to investigate the Old Montana State Prison, the site of a 1959 deadly prison riot. The facility housed many dangerous prisoners during its 108 years as an operational prison. Hangings were routinely carried out on the prison grounds, and at one point, a mobile version of the gallows (currently residing on the property) was responsible for all of the hangings performed in Montana. The guys first speak with Don Deyott who was a former prison employee. Don tells a story about how a former officer was hesitant to go to the theater for fear of encountering the spirit of Turkey Pete. Melanie then tells them about Stanley Dean Baker, who was convicted of murder, and who also participated in devil worship during his incarceration.