John discovers something spooky in a family's basement. The team also investigate a seminary that's allegedly haunted.

Season 3 concludes with a visit to an antique shop in Florida that ends up having something in common with John's museum.

John and the crew meet a woman named Michelle from Fairfield, CT who is hearing banging noises and something is scratching her horses. Michelle lives in a loft apartment near the barn where she keeps her animals, which she relies on for income from children's parties. Her property is jam packed with antiques, a gargoyle and a bizarre wood carving that Michelle buried down the road. The team investigates the home of a man and woman named Eric and Jessica. Eric has been taunted and scratched by ghosts with no explanations! The torment has made such an impact that Jessica has actually left her husband. The dogs have gone crazy to the point where one of the dogs chewed off its own tail.

Case # 1 Donna Wagner in Stratford, CT, has had a ton of paranormal activity that includes seeing the apparition of a child, glass spontaneously shattering and her tenants getting scratched! Why is this happening all of a sudden? Donna is visibly shaken. In her home is an antique lamp that serves as a cigarette lighter, a pool table that belonged to the deceased former owner who had a troubled past, and a statue that the tenant had left behind: it was of her father, and it had been made in Belize. Could it be that the statue is cursed?? During the daytime sweep the team leave little cars in hopes of summoning the apparition of a child. They also marked the area with chalk to note any suspicious movements in the space. Meanwhile, John and Beth find they can't keep any batteries working in the basement, which could be attributed to a paranormal energy drain.

The team delves under a house to find the source of a Lake Charles haunting; the Public Library in Deep River, Ct. holds a plethora of spooky occurrences.

John and his team look into the haunted history of some Native American Artifacts on display at a New Mexico bar. Then, they investigate the alleged paranormal activity taking place in a hotel with a dark past.

John and his team travel to California, where a woman is concerned about the ghostly phenomena in her home. Later, they investigate the paranormal claims of a hunter and his girlfriend.

The team examines a Civil War-era "pain bullet" found in the backyard that may be causing paranormal activity in a house in Sharpsburg, Maryland. Then they travel to River Vale, New Jersey, site of the Baylor Massacre where a 21-year-old college student is the victim of the malevolent spirit of a British Revolutionary War soldier who keeps pinning him down to the bed while he sleeps. They also believe the owner's wood carved statue from the Bahamas ties in with the hauntings since the practice of obeah is steeped in sorcery and folk magic.

John and his team try to determine why guests are running scared from an inn in Arkansas. Also: A castle in Missouri is investigated.

John and the team visit Ponce de Leon's estate in Puerto Rico to investigate reports of disembodied apparitions.

An abandoned prison in Montana is investigated after workers make claims about being mysteriously scratched and hearing cell doors slam. Also: The team look into reports of a female apparition being spotted at a former brothel.

Claims about the ghosts of two girls haunting a Missouri community center are investigated by John and his team.

The team visit the allegedly haunted Emmitt House in Waverly, Ohio; and investigate a coin with a dark past.

Claims of aggressive paranormal activity made by visitors to Fort Wayne in Detroit are investigated by John and his team during a trip to the historic site.

A horse trainer in Montgomery, N.Y., fears for the safety of the animals on her farm in the third-season opener.

John Zaffis and the crew fly to California to investigate a Hollywood Hills home once occupied by movie legend Orson Welles and other celebrities including Peter Lorre, Sydney Toler and Oscar winning songwriter Paul Williams.

David Riccio's cigar bar and cafe in Boston's North End has seen an increasing amount of paranormal activity. (Though the bizarre statues probably don't help spooked out people relax!) Claims are dishes flying, an antique coffee grinder spinning on its own, plates flying and something is knocking the coffee out of people's hands.

Gettysburg, Pennsylvania and Winfield, West Virginia: two cities with war-inflicted tragedies in their paths and two cities with serious ghost problems.