Bagans and the crew dig deep into the mystery of the famed Poltergeist House, launching an unprecedented investigation inside the site of the classic horror film location to uncover the truth behind a rumored curse. Did real-life events converge with Poltergeist's fictional storyline to unlock a lethal, ancient darkness? After the team's lockdown leaves them with more questions than answers, Bagans believes a terrifying relic from the 1982 film could provide insight into the sinister energy that haunts the suburban California home.

One the 100th anniversary of Harry Houdini's midnight visit to the fabled Winchester Mystery House, Zak and a team of paranormal experts attempt to summon the legendary magician's spirit. Will escaping death's grip be Houdini's greatest trick?

Zak and the crew return to the Glen Tavern Inn in Santa Paula, Calif., to help its staff find closure after the loss of a local medium; Korn singer Jonathan Davis assists as the team digs deeper into the dark mysteries of the former gambling house.

Zak and the crew find themselves in an eerie Nevada desert town to investigate a recently shuttered casino haunted by the spirit of a notorious bootlegger. The air is thick with tension as the team and comedian Matt Rife confront the dark energy that lurks around every corner of the abandoned building.

Zak and the crew gain unprecedented access to the cursed Rispin Mansion in Capitola, California. Sealed shut after a violent paranormal event in 2012, the abandoned home has become a vault of concentrated evil, waiting for an opportunity to explode.

Zak investigates a former girl's school in Hollywood, Calif., after a gardener discovers bones in a shallow grave; could the remains be connected to sightings of a ghostly girl? Or is something more malevolent at play.

Zak and the crew travel to Casper, Wyoming to investigate local reports of UFO sightings, alien abductions and hauntings near an ominous mountain and abandoned military base. Will a massive storm prevent the team from unraveling the mystery?

Zak and his crew push higher atop Casper Mountain into the world of storied witches. Their investigation leads to a haunted forest where annual summer solstice rituals may have opened a gateway to another dimension.

Zak and the crew gain access to an abandoned medical complex in Downey, California. Most of the buildings were recently leveled, but Zak suspects that tunnels under the complex could be funneling a dark energy to the buildings that remain.