Ancient Aliens: Season 15, Episode 3

15 - 3: Destination Chile

Chile boasts the highest number of annual UFO sightings of any nation on Earth. Now, incredible new footage of a strange craft–captured by a Navy helicopter–has even the Chilean government asking if alien visitors are drawn to this part of the world. Is there a connection to the more than 5,000 ancient geoglyphs found into Chile's Atacama Desert'