第 13 季 共 15 集
播出时间：2018年4月28日
第 1 集 The UFO Conspiracy
播出时间：2018年4月28日
In 2017, news breaks that the Department of Defense recently spent millions investigating reports of UFOs; the latest disclosure about a series of secret government UFO projects dating back decades.
第 2 集 Da Vinci's Forbidden Codes
播出时间：2018年5月5日
Researchers claim there are hidden messages that can be found within the works of Leonardo da Vinci--and other art throughout history--that may reveal an extraterrestrial influence.
第 3 集 The Alien Protocols
播出时间：2018年5月12日
In 2017, a strange, cigar-shaped object entered our solar system from another star system traveling in such an unusual trajectory it caused some astronomers to suggest that it could be an extraterrestrial craft. It brought up an important question--will we have a plan in place for what to do if we encounter alien life?
第 4 集 Earth's Black Holes
播出时间：2018年5月19日
Could black holes exist not just in outer space, but here on Earth? And if so, could Earth's Black Holes have caused strange disappearances and other inexplicable phenomena for centuries?
第 5 集 The Desert Codes
播出时间：2018年5月26日
Could giant ancient drawings found etched into the desert floor be part of an ancient alien code?
第 6 集 Area 52
播出时间：2018年6月2日
Could Area 51's notoriety act as a cover up to much bigger, top-secret extraterrestrial experiments taking place at multiple locations?
第 7 集 Earth Station Egypt
播出时间：2018年7月21日
Was Egypt home to Earth's earliest extraterrestrial visitors? Ancient Astronaut theorist Giorgio A. Tsoukalos explores the latest scientific discoveries at some of the world's most ancient places to find evidence that extraterrestrials visited Egypt in the distant past.
第 8 集 Island of the Giants
播出时间：2018年7月28日
Could the ancient ruins of Sardinia, Italy hold clues to an extraterrestrial past? Oak Island treasure hunter Marty Lagina and Ancient Astronaut theorist Giorgio A. Tsoukalos explore the bizarre statues, mysterious pyramids and gigantic structures left behind by one of the most mysterious cultures in the ancient world.
第 9 集 The Taken
播出时间：2018年8月4日
Millions of people around the world have claimed to be abducted by extraterrestrials; whether or not these extraordinary accounts are some form of mass psychological delusion, still remains unanswered.
第 10 集 The Sentinels
播出时间：2018年8月11日
Ancient astronaut theorists Giorgio A. Tsoukalos and David H. Childress explore a Polynesian land of bizarre figures and forbidden places in search of what could be the ultimate evidence of mankind’s extraterrestrial origins.
第 11 集 Russia Declassified
播出时间：2018年8月18日
A look at suspicions that the U.S. and Russia have been working together to prepare for an extraterrestrial encounter.
第 12 集 They Came From the Sky
播出时间：2018年8月25日
Ancient cultures from around the world believed that meteorites were sacred stones imbued with the power of the Gods; Ancient Astronaut theorists ask whether or not these space rocks could be pieces of extraterrestrial technology.
第 13 集 The Artificial Human
播出时间：2018年9月1日
A look at whether or not intelligent robots are a threat to humanity or the next step in human evolution; as man and machine begin to merge, humanity could be fulfilling a destiny prepared for by aliens thousands of years ago.
第 14 集 The Alien Phenomenon
播出时间：2019年1月5日
Erich von Däniken's "Chariots of the Gods?" suggests that aliens visited Earth in the distant past, and there are those who believe that he will be proven right.
第 15 集 Return to Mars
播出时间：2019年1月8日
An examination of possible encounters humans could have once colonies are established beyond Earth.
