Police officers, paramedics and other first responders reveal their true encounters with the paranormal while on duty. Not only do these cases defy explanation, they terrify even the most seasoned of men and women who have devoted their lives to serve and protect the living.

After a spike in unusual emergency calls in Morgan City, Louisiana, the town's mayor and his chief of police recruit a team of paranormal experts to investigate the bizarre supernatural activity.

One of the most passionate paranormal teams in America, the Tennessee Wraith Chasers, are in Missouri to investigate a haunted and abandoned asylum.

Museums display the wondrous treasures of the past, and behind each artefact is a story to be told and secrets to be revealed - tales brimming with scandal and mystery, murder and intrigue.

Museums display the wondrous treasures of the past, and behind each artefact is a story to be told and secrets to be revealed - tales brimming with scandal and mystery, murder and intrigue.

One of the most passionate paranormal teams in America, the Tennessee Wraith Chasers, are in Missouri to investigate a haunted and abandoned asylum.

One of the most passionate paranormal teams in America, the Tennessee Wraith Chasers, are in Missouri to investigate a haunted and abandoned asylum.

One of the most passionate paranormal teams in America, the Tennessee Wraith Chasers, are in Missouri to investigate a haunted and abandoned asylum.

An elite team of investigators use an advanced data algorithm to analyse five decades of Bigfoot sightings to pinpoint when and where to find the elusive beast.