After a spike in unusual emergency calls in Morgan City, Louisiana, the town's mayor, Frank "Boo" Grizzaffi, and his chief of police, James "Bo" Blair, recruit local paranormal investigator Jereme Leonard, former FBI agent Ben Hansen and psychic medium Sarah Lemos to end the bizarre supernatural activity. With help from a local historian, they dig up disturbing history associated with the area and begin crossing over some of the restless spirits haunting the small community. Each spine-chilling case leads the team closer to uncovering the truth behind the ghostly infestation of St. Mary Parish.
Paranormal investigators are called by the Morgan City, Louisiana, police department to the site of a shapeshifting mist near the town's lake. Alarm is raised when the mayor reports the hauntings have spread throughout St. Mary Parish.
The team arrives at a home where an eerie ghost girl has been befriending children for generations. When they discover a darker entity lurking in the home, the investigators must figure out how the two spirits are related.
The team investigates a limbless phantom at a historic plantation in Patterson, Louisiana. They soon face more spirits than they bargained for after discovering a connection to voodoo and the deadly yellow fever epidemic.
A call from the Morgan City police sends the team to Louisiana's Atchafalaya Basin, where a trapper reports seeing two men vanish into thin air. A contestant from Naked and Afraid reveals evidence of a dangerous pirate’s spirit.
A bizarre report of the ghost of solider at an antebellum home brings the team to Franklin, Louisiana. As they attempt to contact the spirit, they discover the plantation was seized by Union forces before the Battle of Irish Bend.
The team takes on poltergeist activity connected to a gruesome murder in Berwick, Louisiana. The case hits close to home after they link a baby doll from the crime scene to paranormal activity at their own headquarters.
The team uncovers the shocking history behind the location of their headquarters after an alarm is tripped at Morgan City's archives building. A surprise witness turns their investigation into the uptick of hauntings on its heels.
The team launches an investigation of downtown Morgan City after construction workers discover skeletal remains under the street. They turn to the community for help putting the town's spirits to rest.