Overview
Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
Trailer
Seasons
Season 1
5 Episodes
Season 2
10 Episodes
Season 3
16 Episodes
Season 4
10 Episodes
Season 5
12 Episodes
Season 6
11 Episodes
Season 7
8 Episodes
Season 8
8 Episodes
Season 9
12 Episodes
Season 10
10 Episodes
Season 11
15 Episodes
Season 12
16 Episodes
Season 13
15 Episodes
Season 14
22 Episodes
Season 15
12 Episodes
Season 16
10 Episodes
Season 17
7 Episodes
Season 18
20 Episodes
Season 19
20 Episodes
Season 20
20 Episodes
Season 21
19 Episodes
