Scott Wolter examines a sacred stone that could lead him to the Ark of the Covenant. Then he investigates reports of a secret base operating beneath the Denver airport.
Josh and Jesse investigate a remote shortcut off the Oregon Trail connected to a lost wagon train, desperate settlers and a creek filled with gold nuggets. A remote gravesite may point the way to a lost bucket of gold collected by the settlers.
Josh treks to northern Chile to explore two abandoned mining towns that are filled with unexplained shadows and eerie sounds. Then, he's off to New Zealand to hunt down a large aquatic monster that is attacking a Maori village.