A father of four survived multiple tours in Iraq and Afghanistan, but he says the greatest threat he's ever faced is inside his own house. When Amy Allan encounters a terrifying entity known as "The Dark One," the investigation reveals a dark history and a horrifying warning for the family. The Streaming Home of Paranormal on discovery+: https://www.discoveryplus.com/?genre=paranormal-unexplained Like Travel Channel on Facebook: https://www.facebook.com/TravelChannel/ Follow Travel Channel on Instagram: https://www.instagram.com/travelchannel/ Follow Travel Channel on Twitter: https://twitter.com/travelchannel Follow Travel Channel on TikTok: https://www.tiktok.com/@travelchannel Visit Travel Channel: http://www.travelchannel.com