Genre: Documentary, History, Paranormal
Premise: Investigators circle the globe in search of evidence in their quest to determine whether life on Earth began in outer space and if aliens influenced mankind in ancient times. Did extraterrestrial beings visit Earth and share information about technology and influence human religions? And more importantly, if aliens visited the planet before, will they return? Alien theorists believe that the answer to both questions is a resounding yes.
S04, E04 (First Aired: Mar. 2, 2012)
Natural disasters in the ancient world, including volcanic eruptions, earthquakes, floods, and meteor strikes may have originated with the meddling of celestial beings.
S07, E02 (First Aired: Jan. 31, 2014)
Strange rock carvings from 8,000 B.C.; unexplained sightings in the new world; a frightening anomaly plaguing the American west; a strange man-made cave filled with ancient objects and mummies; strange lights and unexplained weather anomalies.