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Paranormal investigator Zak Bagans leads his team of co-investigators at haunted locations both in America and abroad, interviewing locals about alleged hauntings before going face to face with supernatural entities. Each hourlong episode follows Bagans and his crew as they work to uncover the paranormal mysteries, and after piecing together the haunted history of each site, the team holds a dusk-to-dawn lockdown in an effort to obtain physical evidence of the paranormal and discover the truth.