The season's final paranormal challenge takes place at the Jerome Grand Hotel of Jerome, Arizona, a former mining town with a dark history.
Zak brings this week's contestants to the USS Hornet docked in Alameda, California, to determine if the spirits still haunting this vessel will communicate with them.
Two paranormal teams battle it out in the former Linda Vista Hospital of Los Angeles, California.
Zak brings two paranormal teams to Lompoc, California's La Purisima Mission to determine which group has better investigation techniques.
This week Zak and Co are at Tennessee's Old South Pittsburgh Hospital to see which team can find the most compelling evidence of paranormal activity.
Zak brings two more teams to the Trans-Allegheny Lunatic Asylum to see which trio can collect the best paranormal evidence.
Zak brings two local paranormal teams to Waverly Hills Sanatorium in Louisville, Kentucky to see who can collect the most compelling evidence of the paranormal.
This week's challenge is held at the West Virginia State Penitentiary, one of the most notorious haunted locations in the United States.
Two new teams are brought to Mansfield, Ohio to investigate the former State Reformatory.
Zak brings two more teams to the former Pennhurst State School to determine which team can capture the best evidence of the paranormal.
Zak challenges two new paranormal groups to investigate Philadelphia's Eastern State Penitentiary, the former residence of some of the worst criminals, including Al Capone and bank robber Willie "Slick Willie" Sutton.
Zak brings two paranormal teams to Bethany, New York to investigate the Rolling Hills Asylum, a former poor farm and nursing home.