Welcome to the Mina Dos Estrellas Mine, built in 1903 by European gold diggers. This mine soon fell prey to the wrath of the legendary creature called Nahual.

Seven people will face their greatest fears at the haunted Ki Sugar Mill. First built in 1876, this South Pacific sugar mill was plagued by strange deaths and terrible accidents, making it one of the most paranormally active sites in the world. Will the seven contestants make it to the end, or will some fall out, their fear greater than their will to see it through?

Four complete strangers investigate the haunted former Boettger Brewery and the owner's mansion which is connected to it. Those who complete their dares and remain in the location until released will win a cash prize, while those who succumb to terror leave with nothing except a better understanding of where their breaking point is.

A new group of people take the challenge to face their worst fears. Their location is the Haceinda Tabi, a former colonial outpost in the Yucatan. Clashes between the Spanish conquistadors and the Mayan people often ended in blood, and in time the once vibrant Mayan culture was lost, its people little better than slaves to their Christian overlords. But perhaps their spirits live on within these crumbling walls. And by the end of the night, each of the people visiting the location will know their answer to this question, "Is the Hacienda Tabi haunted?"

Six people agree to confront their worst nightmares and spend the night in a haunted hospital. They're sent to Canada's Serenity Lake Sanatorium, a former TB clinic, where thousands of patients, and even staff members lost their lives to the disease.

A new group of contestants return to the Mina Dos Estrellas Mine, built in 1903 by European gold diggers, and said to have fallen prey to the wrath of the Nahual. The Nahual are creatures from Mesomerican legend, either witches or spirits that can change shape, taking on the forms of animals. Will any of the contestants make it through to the end, or will they all be driven away by their fears, as were the last group who attempted to stay there?