The season-ender for "The Secret of Skinwalker Ranch" on History Channel was quite the thrill.
Other installments in this series -
Link 1 - Thorium and other rare earth elements?
Link 2 - The Ark of the Covenant?
Link 3 - Portal(s)?
Link 4 - REE's (Rare Earth Elements)
Link 5 - Ancient Giants
Link 6 - Alien Base
Link 7 - New Evidence of Portals Between Universes
Link 8 - Bigelow and Fugal Coincidence?
Link 12 - Communicating with Intelligence