Zak and the crew conclude their investigation of the Graveyard of the Pacific with a visit to Washington State, where they explore a lighthouse that bore witness to some of the most tragic shipwrecks on the Pacific Coast.

Zak and the crew are in San Francisco investigating a mysterious castle built on top of sacred caverns said to be a haunted by a female apparition. The current owners claim to be plagued by paranormal activity in almost every corner of the property.

Zak and the crew investigate a mysterious castle in San Francisco.

Zak and the crew investigate a former mining town sitting atop a mountain.

The crew investigates the Pasadena, CA, home of a self-proclaimed Satanist.

Zak and the crew rush to help a Nevada family who claim paranormal activity sent one parent to the hospital, and fear their young daughter is next; the team works to uncover the dark source of the psychological attacks hiding inside the home.

Zak and the crew head to an Arizona mining town to investigate a former school where horrendous child abuse took place; the team unlocks the dark secrets that lay entombed in the walls of the building.

The crew go far off the beaten path in Arizona to investigate an abandoned sanatorium. Dozens of deaths, including the murder of a child, have left a heavy residue of pain and suffering on the building, making it a hotbed for aggressive poltergeist activity.

The GAC head to downtown Los Angeles to investigate the long-abandoned Roxie Theater. The site of a mysterious suicide, the once-majestic movie house has been left to rot, making it the perfect refuge for lost souls—along with a dark, foreboding energy.

The GAC gain access to a Los Angeles mansion where a gruesome murder-suicide that made tabloid headlines and became urban lore took place sixty years ago. In the first-ever paranormal investigation of the long-shuttered residence, they uncover shocking secrets and a terrifying presence.

Zak and the crew continue their confrontation with a dark presence that has overtaken the Los Feliz neighborhood's infamous hillside mansion. The investigation turns emotional when they conduct an ancient Sumerian ritual to open a portal to the other side.

Zak and the crew investigate an Arizona high school plagued by paranormal experiences; exploring if the ghostly activity is linked to an abandoned cemetery or if the victims of a deadly explosion are calling out from beyond the grave.

Zak and the crew visit a mysterious Nevada town plagued by paranormal activity. Is a murdered witch's curse responsible for the haunting? Or is it linked to the dark energy vortex created by a cave that once concealed a grisly secret?

The Ghost Adventures crew sets sail for a Southern California island steeped in supernatural phenomena. And the epicenter of the paranormal activity is a sprawling theater that once housed the disinterred bones of the island's indigenous people.

The crew sails into the coastal town of Oxnard, California, to help a couple tormented by unseen forces in their house. Zak makes a surprising connection as the team attempts to unmask the driving force behind the negative energy in the stately home.

Zak and the crew descend upon a Southern California park to investigate a preschool haunted by tragedy and violent deaths. The team wants to determine if an ancient tribal tale of vengeance has continued to cast a dark curse on this former homestead.

Zak and the crew tread upon sacred ground when they investigate reports of skinwalker sightings in the remote town of Torrey, Utah. Was the invasion triggered by the desecration of Native American artifacts, or has a past investigation come back to haunt the team? Zak and the crew also investigate the Chuckwagon Inn and General Store and find themselves caught in a battle between an ancient energy and the dark spirits that haunt the building.

Zak and the crew head to historic Ogden, Utah, to explore two adjacent buildings that are overrun with dark spiritual activity. One of the buildings once housed a thriving brothel, and locals suspect its former madam is still running her business from the grave.

Zak and the crew gain unprecedented access to a historic Los Angeles hospital to expose a demonic energy that has trapped countless souls inside the massive facility. This malevolent presence is a force to be reckoned with as the team explores the abandoned halls.

Zak and the crew check in for a night of terror at an infamous Tucson, Arizona, hotel plagued by poltergeist activity and spirit possession. Could a brush with one of America's most violent gangsters be responsible for the darkness that inhabits the building?

Zak and the crew trek through the Nevada desert to locate a former Wild West town haunted by a grave injustice. The guys are shaken when they discover that the Manson family camped out in the courthouse of the crumbling town.

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 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.

Zak and the crew delve into the darkness that surrounds the historic and very haunted town of Sutro, Nevada. The team suspects an old mining tunnel is fueling the abandoned settlement's ominous aura as they uncover numerous deaths, disasters and mysterious fires.

Zak, Nick & Aaron explore the Riviera Hotel with a few special guest stars.