NewsNation special correspondent Ross Coulthart sets out in search for UFOs in the American desert with UFO investigators Jeremiah Horstman & Alexandra Caldwell. Exclusive photos are shown of choppers allegedly escorting strange objects, a mysterious “soldier” who may have pursued them in the mountains, and what they believe could be the entrance to a deep underground military base. Australian treasure hunter Paul Duggan also maps out what he believes is a strange chasm underground.