Josh Gates sets off on the most extraordinary expedition of his career. He'll journey over 50,000 miles to four continents to tackle mankind's greatest question: Are we alone in the universe?

Release : October 04, 2017

Website : https://www.travelchannel.com/shows/expedition-unknown-hunt-for-extra-terrestrials

Total Eps : 4 / 58 minutes

Total Season : 1

Rating : 8.20