What on Earth?

Who Built Supervillain Island? (2x4)

Air date: Feb 16, 2016

An island appears in a contested part of the sea where one wasn't a month ago; large holes the size of football fields begin to pop up across the Siberian landscape; huge arrows are discovered scattered across Nevada further investigation finds that these arrows are all over the American west, but what do they point to; in Nov 2000 NASA's Terra satellite captures an image of a blood red waterfall coming out of a glacier; in 2011 a mysterious structure is seen in the Lybian desert could it have been built by Romans or someone else; in New Mexico large rings are seen etched into the desert own by the Church of Scientology.