
It is mankind's eternal question: are we alone in the universe? Adventurer and explorer Josh Gates sets off on a 50,000-mile, multi-continent quest to find the answer in Travel Channel's spellbinding four-week special event, Expedition Unknown: Hunt for Extraterrestrials. Gates' out-of-this-world mission takes him on an epic journey across North America, South America, Africa and Europe, searching for evidence of life beyond our planet and the truth behind longstanding extraterrestrial legends.

Josh begins his search for extraterrestrial life with a once-in-a-lifetime visit to NASA. He then hunts for evidence of aliens in Chile, where he views a UFO video captured by the military and assists scientists at the largest telescope on Earth.

Josh's journey continues on remote Easter Island, where ancient alien theorists believe extraterrestrials visited a millennia ago. Then, he goes to the site of a recent meteorite strike in Zimbabwe that could prove life on Earth began in outer space.

The hunt for alien life continues in Zimbabwe, where Josh interviews witnesses from one of the largest UFO sightings in modern history. Then, in England, he investigates the infamous case that has become known as "Europe's Roswell."

Josh's epic search for extraterrestrial life comes to a close in the USA, where a legendary investigation team brings him to a hot case in Arkansas. Then, he visits with a researcher who may have new information on the mother of all UFOs.
Complete episode guide for Expedition Unknown: Hunt for Extraterrestrials with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.