The first episode of the season ventures deep into the countryside of Wicklow, Ireland for an investigation of an old 18th century prison. As these 'real-life ghost hunters' try to uncover truth or fiction, they'll face their closest supernatural encounter yet! Written by Anonymous

Back in the Czech Republic, GHI investigates a castle reputed to have been built over the gate to Hell.

GHI's first trip to Austria brings them to a five hundred year old torture chamber; the investigation of a royal palace is part ghost hunt, part treasure hunt.

Ghost Hunters International returns to Italy to investigate the Tuscan castle of Malaspina and its 700 year old legend of the doomed lover Bianca Maria Aloisia.

The GHI team is bound for South America and arrive in Chile for two investigations. First stop - the famed El Bosque City Hall, which was once a retirement home for Catholic priests and doubled as a house of detention for the secret police during the reign of Augusto Pinochet. The team will also investigate the Santiago Severin Library, where the librarians are hearing noises they can't shush away. Written by Anonymous

The Ghost Hunters International team ventures to Miramar, Argentina and set their sites on the Gran Hotel Viena, once the secret residence of many Nazi war criminals including rumored guest, Adolf Hitler.

Ghost Hunters International makes their way to La Falda, Argentina to uncover the ghostly mysteries of The Eden Hotel, a 19th century luxury resort which once welcomed the rich and the famous. The GHI team then ventures to Junee, Australia to visit the Monte Cristo Homestead, built in 1884 as a Victorian manor for a wealthy family. Unfortunately the manor has been plagued by many horrific incidents and deaths over the years. Written by Anonymous

The GHI team ventures to Sydney, Australia and visits the Quarantine Station -- named Australia's most haunted area.

GHI investigates the ruins of the Port Arthur Penal Colony in Tasmania, Australia. From 1830-1870, Port Arthur was the place they called hell on earth, where the convicts of a past era lived and died.

Ghost Hunters International ventures to Hobart, Tasmania and investigates the Tasmania Supreme Courthouse.

The GHI team ventures to Costa Rica and investigates the San Lucas Penitentiary, an abandoned 19th century prison known as 'The Alcatraz' of Central America.

The GHI crew heads to Kingston, Jamaica and tries to shed light on the ghost of sugar plantation owner, Annie Palmer. Her cruel and often sadistic ways towards her slaves labeled her as the 'White Witch of Rose Hall.'

With passports and EMF detectors in hand, the team from Ghost Hunters International is back on the case. The crew heads to the Galleries of Justice, tucked away in Nottingham, England, a location historically notorious for its 123 documented public executions and undocumented torture of prisoners. Also, Ghost Hunters Academy graduates Karl Pfeiffer and Susan Slaughter officially join the GHI team. Will they be able to survive the jump into the big leagues, and successfully tackle the claims of haunting in the Galleries? Written by Anonymous

This week is a double-header, with the team starting at Margam Castle in Wales. Their next stop is the 900-year-old Ostrich Inn in England, which served as the inspiration for Sweeney Todd. Former owners the Jarmans killed over 60 people by getting them drunk, putting them to bed, then dropping them through a trap door in the bed into a vat of boiling oil below. Written by Anonymous

The team from Ghost Hunters International embarks on one of their most expansive and dangerous investigations to date. The crew heads to Poland to visit the site of the infamous Valkyrie Bombing and command post of Adolf Hitler, Wolf's Lair. Written by Anonymous

The Ghost Hunters International team ventures out for two terrifying investigations as they head to Norway's Fredricksten Fortress and Estonia's Old House.

Nicaragua is the latest location for the global ghost hunt.

The GHI team heads to Honduras for a chilling investigation of a fortress that was once home to a violent attack by pirates of the Caribbean.

The GHI team travels to Denmark to investigate Kronborg Castle, the inspiration for Shakespeare's Hamlet. TAPS members Kris Williams and Britt Griffith join the team.

The GHI team travels to the Ukraine to investigate Pidhirtsi Castle where, during World War II, the Nazis conducted human experiments. The team then travels to Reszel Castle in search of the last witch of Poland.

Can a house ruin a man's life? According to Johan Vlemmix, owner of what is referred to as the most haunted house in the Netherlands, it can. He bought the house just over a year ago, and since that time, all aspects of his life have gone downhill. The previous owner concurs - his own life is in shambles, he says, solely because of the house. Johan is grateful to have GHI present, and they, in turn, do their best to get to the bottom of the strange phenomena to which the house is prone. Written by thetvdb

GHI travels to Serbia for one of their biggest cases ever, the massive Petrovaradin Fortress. Susan and Paul get more than they bargained for when a ghost gets a little too close, while the other teams have dangerous encounters of their own. Written by Anonymous

The GHI team travels to Scotland to investigate the famous opera house, Usher Hall. They continue their northern journey to the Inveraray Jail, where prisoners are still thought to be serving their sentences in the afterlife.

The GHI team travels to Puerto Rico for the first time to investigate the iconic fort, El Morro, and the ornate Teatro Tapia. These two locations are both integral to Puerto Rican culture and need GHI's help to uncover the lingering paranormal mysteries. Written by Anonymous