Zac and the guys revisit their investigation of the world-famous comedy club; fear and laughter go hand in hand as the crew encounters a paranormal energy unlike any other at the iconic LA hot spot.

Zak and the guys look back at their investigation of a Utah mansion soaked in tragedy and bloodshed; the historic home is charged with so much negative energy that the crew fears it may be a portal to hell.

The guys don their Hawaiian shirts and break out the ukulele as they look back at their investigation of Catalina Island; Zak and the crew are excited to relive one of their greatest captures to date on this haunted island off the coast of LA.

Zak and the guys give an inside look at what it takes to investigate a demonic home invasion as they revisit a terrifying case in Nevada; moved by a family's pleas for help, the crew works fast to uncover the dark source of their invisible attacker.

Zak and the guys look back at their historic investigation of a mysterious canyon located in the Four Corners region of New Mexico; the crew recalls how they were unknowingly drugged while chasing down skinwalkers in the desert.

Zak and the guys look back at an extremely disturbing investigation of a family home in suburban California; strong demonic activity and a satanic message sent through a child's toy makes this one of the most intense lockdowns for the crew.

Aaron decides to take the guys back to their Wild West adventure in a California mining town; Zak and the crew brave a treacherous cliffside trail to confront the lost souls that haunt this secluded settlement.

Zak and the guys revisit one of their top pieces of poltergeist activity ever captured on camera when they look back at their investigation of satanic activity in a Texas hotel.

Zak and the guys revisit a case that hit a little too close to home when they answered a desperate call for help from Aarons's dad, Don; the crew worries for Don's safety as they confront the dark spirits that lurk inside his Las Vegas home.

Zak and the guys revisit their investigation of an abandoned Washington hospital teeming with dark, aggressive energy; the crew must stick together as they navigate the haunted corridors of the run-down building.

Zak and the guys recall their unique investigation of a Utah pizzeria plagued by an evil witch's curse; the crew gets a violent response when they try to draw out a demonic entity in the basement.

Zak and the guys revisit their intense investigation of a shuttered juvenile detention center in California; the crew questions whether to continue their dark mission as they confront the lost souls imprisoned within these walls.