Zak and the crew stick together as they investigate a 127-year-old hospital in Colfax, WA. The building may be abandoned, but it's far from quiet with reports of visitors hearing strange growls and being attacked by unseen hands.

Zak and the crew travel to the Bay Area to investigate aggressive paranormal activity at a historic hotel that has endured the brutal California Gold Rush, a smallpox epidemic and a period as a seedy flophouse.

Zak and the crew investigate a former tuberculosis hospital in Gooding, Idaho, that's been converted into an inn. The owners and their staff have been terrorized by whispering voices, ghostly children and the spirit of an angry old man.

The crew investigates a historic hotel plagued by restless spirits in Eureka Springs, AR. They capture a curtain moving on its own and make contact with Michael, the hotel's most active and notorious ghost.

The crew investigates paranormal activity at a Vegas haunted attraction.

The crew investigates aggressive spirit activity at a California estate.

Zak and the crew investigate an Arizona home sitting on land once occupied by a Native American tribe. The owner claims he's been affected by a dark, aggressive energy and believes an ancient entity is haunting his property.

Zak and the crew investigate dark energy at a Las Vegas gentlemen's club.

Zak and the crew land outside of Pioche, Nevada, to investigate a mysterious ranch known for its concentration of supernatural energy and countless reports of extraterrestrial activity.

The crew investigates a historic hotel plagued by dark spirits in Colorado.

The crew investigates two hotels inside an infamous Las Vegas casino.

The crew investigates a former casino with a shady past in Yuma, AZ.

Zak and the crew rush to a private home in Amarillo, TX, where a family is reaching its breaking point with an aggressive entity. It's the guys' most complex and challenging investigation yet as they search for the truth.