1. Poltergeist House Curse

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.

2. The Houdini Seance

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?

3. Glen Tavern Tragedy

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.

4. Abandoned at Whiskey Pete's

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.

5. Mystery of Rispin Mansion

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.

6. Living Dead on La Brea

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.

7. Mountain of Madness Part 1

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?

8. Mountain of Madness Part 2

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.

9. Hollydale Asylum of Hell

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.

10. Hospital of the Damned

Zak and the crew gain access to a shuttered Pasadena, California, hospital that has become a hotbed for devil worship; Zak suspects the evil originated with a heinous murder nearly 25 years ago.

11. Darkness of Belmont Park

Zak and crew investigate reports of phantom footsteps, laughter, and spectral figures at a San Diego amusement park. The guys discover a dark cloud of death hangs over this beloved establishment that has entertained millions for 100 years.

12. Rage on the River

In Reno, NV, Zak helps a couple consumed by overwhelming darkness while renovating the abandoned River Inn, causing them to sleep in an RV.

14. Buried Souls of Pendleton Part 1

Zak and crew arrive in historic Pendleton, Oregon, to investigate dark hauntings in its storied subterranean tunnels. Has a history of death, misery and hatred fed the negative energy snaking its way beneath this seemingly peaceful town?

15. Buried Souls of Pendleton Part 2

The crew continue their terrifying investigation of historic Pendleton, Oregon. A tip from a local sends the team to an unexplored section of the town's mysterious tunnel system that may bring more shameful secrets and a curse to light.

16. Doll of Fire

The team helps a family that has been driven from their home by a malicious entity. Their misfortunes began when they took in a doll from a hoarder's home. Zak fears that whatever inhabits the doll is responsible for a mysterious fire.

17. Manor of Malice

GAC are summoned to a Los Angeles mansion where recent restoration efforts have awakened a sinister presence. With each step, the team risks falling prey to a dark attachment that threatens to follow them beyond the historic home's walls.

18. Condemned in Calico

Zak and the crew roll into a Wild West town to confront a posse of volatile spirits that are tormenting the living. The many deaths from this desert outpost's lawless past has infused the very rocks with a dark, powerful energy that cannot be contained.

19. Midnight at the Museum

Unsettling paranormal events near an exhibit of serial killer Samuel Little prompt Zak to investigate his own Las Vegas museum. Are the events connected to Little's recently acquired remains, and could the lockdown reveal clues to his unsolved murders?

20. Pioche Hospital of Hell

Two abandoned buildings in Nevada show signs of disturbing activity.