The cat's out of the bag – the Joe Exotic Zoo is haunted. As the world has recently witnessed, the Greater Wynnewood Animal Park has a history marred by tragedy and drama. But believe it not, there's another chapter in this sensational saga. Park staff regularly experience mysterious and unexplained activity, which they're sure is connected to the park's ill-reputed events. Now, the Ghost Adventures crew – Zak Bagans, Aaron Goodwin, Jay Wasley and Billy Tolley – have been called to investigate, breaking new ground with the first-ever paranormal investigation inside the Oklahoma park. Travel Channel's two-hour special, Ghost Adventures: Horror at Joe Exotic Zoo, premieres Thursday, October 29 at 9|8c. It's an undertaking like no other for the group, teeming with shocking stories and discoveries, cadaver dogs and undeniable paranormal evidence.

"This investigation was wild from beginning to end. We went into it thinking we knew a little about this story already, but there were so many surprises at every turn," said Bagans. "It's a super-charged location and it felt surreal to be there. This special has all the drama, characters and twists that you would expect in any Joe Exotic story. But just when you think you've seen and heard it all, there's more."

Something sinister lurks in the shadows of this park. In exclusive interviews, Jeff and Lauren Lowe, who purchased the zoo from Joe Exotic in 2016, reveal rumors and stories about the notorious grounds, including allegations of murder. Employees also believe the spirit of Travis Maldonado, who tragically and accidentally killed himself inside the park, still lingers and appears in the form of a dark mist. As Bagans and the crew speak with park staff – including Erik Cowie and Allen Glover, well-known characters from the documentary – they learn new details about the park's story, and experience unexplained encounters that creep even these guys out: apparitions, shadow figures, voices and mysterious light phenomena.

It's a beast of a case and the team calls in the big guns for assistance. Engineer Bill Chappell will conduct the biggest audio experiment he's ever performed for an investigation, spanning the park's entire perimeter. To investigate the alleged claims of buried bodies, they bring in a forensic team to search the property for evidence. The park is awash with activity from the get-go, and it's inside Joe Exotic's former cabin that they capture astonishing evidence that may prove Travis' spirit is still around. But when the cadaver dogs get a possible hit for human remains and the investigation gets shut down by police, the real digging begins. As the dogs return a second time and the Ghost Adventures team captures three distinct EVPs in the areas of question, they're convinced there is more to this story.

Zak and the crew travel to Globe, Arizona, to investigate a former bordello that was a hive of sinful behavior in the early 1900s. Two unsolved murders and a deadly shooting may have been fueled by the dark energy that surrounds the historic building.

Zak and the crew head to Ontario, California, to investigate a century-old farm ripe with paranormal activity, particularly by a vicious entity known as The Creeper.

Lake Havasu residents have come to face with an unexplained phenomenon, from sightings of dark figures to bizarre boating accidents to screams heard in the night. Could the granite of this famous bridge be haunted by ghosts of old London?

Zak and the crew investigate a 120-year-old building in Salt Lake City's industrial district. Local business owners claim paranormal activity has recently ramped up after a break-in revealed remnants of a dark ritual in the basement.

Zak and the crew investigate a saloon in Virginia City, Nevada, where staff are being violently attacked by an entity that inhabits the basement. A haunted artifact known as the Suicide Table may be responsible for the aggressive activity.

Zak and the crew investigate claims of poltergeist activity at a Las Vegas tiki bar. The staff believes a horrendous shooting on the property in 1995 may be responsible for recent sightings of moving objects, flying shadow figures and a ghost girl.

Zak and the crew investigate reports of a mysterious gray entity haunting an ancient plot of land in West Haven, Utah. They uncover compelling evidence that suggests the paranormal creature originated with a shaman's curse.

Aaron's father, Don, calls Zak and the crew to his Las Vegas home to investigate threatening paranormal activity. The terrifying apparition of a little girl and a dark, powerful presence a neighbor believes is a witch has left Don scared for his life.

Zak and the crew travel to the Antelope Valley in Sacramento, California, to confront a demonic entity that's tearing a family apart. Zak believes an exorcism may be the only way to save them from the dark and powerful forces plaguing their home.

Zak and the crew are back in Virginia City, Nevada, to investigate the dark spirits haunting a historic brewery. A devastating fire and a short stint as a funeral home has stained the building, creating an energy unlike anything they've encountered.

Zak and the crew travel to Cleveland to investigate the most-haunted residence in Ohio. Whispers of murder, suicide and arson have led many to believe the majestic mansion carries a deadly curse.

Zak and the crew investigate a demonic entity terrorizing a small California town. Many locals believe the malicious spirit is responsible for a series of horrific deaths, and an exorcism may be the only way to save their souls from its dark clutches.