Documentário do History Channel sobre portais na Terra que possivelmente levam ao Inferno.
George Kourounis
Self - Explorers Club
Elizabeth Baquedano
Self - Archaeologist
Chris Simpson
Self - Pastor
Elaine Pagels
Self - Author of 'The Origin of Satan'
Marvin Meyer
Self - Chapman University
Jeff Wise
Self - Author of 'Extreme Fear'