Zak, Nick, and Aaron investigate an old jail in Charleston, South Carolina. During its 137 years in operation, the Old Charleston Jail held within its stone walls some of the city's most notorious convicts. Some have been vindicated by history; others are remembered as monsters. For a few, their guilt or innocence remains a mystery.

Zak, Nick and Aaron delve deep into the dingy Shanghai Tunnels in Portland.

The guys explore an unsolved murder at the Peabody Mansion in Denver.

Zak, Nick and Aaron engage in a two-part lockdown in the town of Bisbee.

Zak, Nick and Aaron return to Nevada City to investigate a hotel and caves.

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

Zak, Nick & Aaron explore the Hellfire Caves outside London, England, where they recreate past secret pagan rituals and conjure the spirits of 18th century English royalty.

The crew are in Kent, England, inside Fort Horsted; the guys recruit locals to conduct a séance to provoke the demonic spirits that terrify visitors at the fort.

Zak, Nick & Aaron head to Zak's hometown of Chicago, IL, for a two-location lockdown of the Excalibur Nightclub and Bachelor's Grove Cemetery. The guys are taken aback when an unseen force pushes Zak down the stairs in the club.

Zak, Nick & Aaron explore one of America's most haunted lighthouses in Point Sur, CA. The guys are amazed when they discover a mysterious figure along the coastline.

Zak, Nick and Aaron head to the Great Lakes to explore the demonic activity overrunning the Palmer House Hotel. The investigation gets personal when a dark spirit beckons Zak and Aaron, speaking their full names.

Zak, Nick and Aaron voyage to Greenfield, Indiana in search of the source of a dark power, which has overrun the Black Moon Manor. As the temperature suddenly drops to 66.6 degrees, the guys are startled to hear a demonic voice.

Zak, Nick & Aaron investigate the Sedamsville Rectory in Cincinnati, OH, plagued by a violent and demonic entity. The guys bring a priest in to perform an exorcism on the house, and they witness someone being possessed.

Zak, Nick & Aaron travel to the old mining town of Cripple Creek, CO to investigate two locations plagued with paranormal activity. The guys collect astounding visual evidence after implementing new 3D technology.

Zak, Nick and Aaron head to the infamous Brookdale Lodge in CA in search of notorious spirits lingering around the building. With the help of Zak's dog, Gracie, the guys hope to contact the spirit of a diseased little girl.

Zak, Nick and Aaron travel to the Tor House, former home to American poet, Robinson Jeffers, who predicted he would talk to the living 50 years after his death. The guys watch in awe as they glimpse a misty figure by the tower.

Zak Bagans, Nick Groff and Aaron Goodwin investigate the historic Union Station in Kansas City, MO. The guys record visual evidence of an apparition without a reflection in the marble floors.

Zak, Nick & Aaron travel to a tiny Texas town to determine if the town's "crazy water" has led to the Baker Hotel becoming infested with ghosts. During the lockdown, Zak turns aggressive after a shadow figure disappears into him.

Zak, Nick & Aaron head to the Wyoming Frontier Prison, the resting place for over 200 inmates. While the guys investigate a 2nd haunted location in the neighborhood, an unseen entity violently throws their camera to the ground.

Zak, Nick & Aaron are accompanied by ABC's Nightline crew to investigate a haunted harbor in Staten Island. The Ghost Adventures crew hears phantom noises and Zak and Nick discover a shadow lurking in the darkness.

Zak, Nick & Aaron visit three New Orleans locations haunted by the lost souls of 2005's Hurricane Katrina. Zak records a spirit utter the words "Katrina," and Nick & Aaron witness books fly off the shelves during a voodoo ritual.

Zak, Nick and Aaron invite celebrity investigators Brit Morgan from HBO's True Blood, and recording artist Mimi Page to Santa Paula to explore the haunted and mysterious Glen Tavern Inn.

Zak, Nick and Aaron take their first trip to Mississippi to investigate the daunting King's Tavern, home to a legendary bloody dagger. During their lockdown, two members of the team appear to have lost control of themselves.