The WORST episodes of Ancient Aliens

Every episode of Ancient Aliens ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Ancient Aliens!

Explores the controversial theory that extraterrestrials have visited Earth for millions of years. 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. Did intelligent beings from outer space visit Earth thousands of years ago?

Last Updated: 12/15/2024Network: HistoryStatus: Continuing
The Forbidden Zones
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0.00
0 votes

#1 - The Forbidden Zones

Season 8 - Episode 10 - Aired 10/9/2015

Due to warfare, instability, and inaccessibility--there are specific regions of the world that are off-limits to exploration. These forbidden sites are often ground zero for chaos and the destruction.

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Alien Wars
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#2 - Alien Wars

Season 8 - Episode 9 - Aired 10/2/2015

On March 19th, 2002, Gary McKinnon was arrested for hacking into 97 Pentagon and NASA computers over a 13-month period, in what authorities call the "biggest military computer hack of all time." McKinnon claimed that he found evidence of a secret American space fleet, by way of a list of dozens of "non-terrestrial officers" and their assigned spacecraft, replete with USSS (United States Space Ship) monikers. Might the United States military really have a secret space program? And if so, are we preparing for a space-based war with other nations... or other species? Ancient Astronaut theorists suggest that there are numerous factions of alien races with competing agendas visiting Earth, and that there is evidence they have been in conflict with each other for thousands of years. According to these theorists, there is evidence that these wars actually took place here on Earth in the distant past--not between gods, but between extraterrestrial visitors.

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The Alien Agenda
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0 votes

#3 - The Alien Agenda

Season 7 - Episode 12 - Aired 5/1/2015

Many of humanity's most significant turning points have bore witness to unexplainable events. Is this merely coincidence, or could it be evidence that the course of human history is being manipulated by an alien agenda? Ancient Astronaut theorists have long proposed that extraterrestrials played a pivotal role in our past, and some believe they continue to keep a careful watch over the progress of mankind. Even high-level government officials have made claims that extraterrestrials are visiting our planet with an interest in our technological advancements, including former Canadian Defense Minister Paul Hellyer, who stated that that the cosmos are teaming with life. Could the UFO phenomenon be real? Have extraterrestrials been monitoring human progress for thousands of years--at times helping us to advance, and at other times holding us back?

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Mysterious Devices
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6.00
28 votes

#4 - Mysterious Devices

Season 6 - Episode 14 - Aired 6/27/2014

A potential link between alien technology and mysterious devices from ancient cultures is examined.

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Alien Encounters
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6.50
56 votes

#5 - Alien Encounters

Season 6 - Episode 18 - Aired 8/15/2014

Stories of strange encounters accompany many of history's major events. Is it merely coincidence? Or might it be evidence of extraterrestrial intervention? In ancient myths from cultures around the globe, gods are often portrayed intervening in human affairs. The Sumerian gods are said to have created mankind; the Hebrews believe God gave Moses man's first laws, the Ten Commandments, and the angel Gabriel reportedly shared divine wisdom with the prophet Muhammad. But is it possible that these supernatural visitations were not actually the work of the gods--but rather a race of extraterrestrials using advanced technology to create and shape our civilization? Ancient Astronaut Theorists believe aliens may have helped guide mankind in the remote past--and that evidence for this stunning conclusion can be found sprinkled throughout human history.

The God Particle
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6.50
56 votes

#6 - The God Particle

Season 6 - Episode 17 - Aired 8/8/2014

It has been called the key to the universe and possibly the most important scientific breakthrough of all time. Could the so-called "God Particle" reveal the truth about our origins? And might clues to its significance have been left here on Earth thousands of years ago by extraterrestrial beings? The age-old question, "where did we come from?" remains a mystery, but in 2012, scientists at CERN laboratory announced the discovery of the "God Particle"--the subatomic particle that is believed to give mass to matter--and offers a closer understanding of just how the universe began. The discovery seemingly pitted science against religion. But could science and religion actually be kindred spirits? Many ancient religions and mythologies describe the origins of the universe in ways very similar to today's scientific explanations and proclaim that this information was given to them by otherworldy beings.

The Tesla Experiment
star
6.50
56 votes

#7 - The Tesla Experiment

Season 6 - Episode 16 - Aired 8/1/2014

He is one of the most prolific inventors of the 20th century--and the man that actually electrified the world. Nikola Tesla shepherded mankind to a new industrial era and laid the groundwork for today's technological age--but could that have been by some otherworldly design? A man shrouded in mystery and intrigue, Tesla would speak about obtaining insights in a flash of genius, how he could visualize his inventions in full-detail and manipulate them in his mind, and his compulsion to invent the future. But he also claimed to have direct communication from intelligent beings on other planets. Is it possible that this alleged mad scientist, so far ahead of his time, was actually a human "receiver"? A being tapped to advance mankind--and pave the way for a future reunion with our alien ancestors?

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Mysterious Relics
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6.50
56 votes

#8 - Mysterious Relics

Season 5 - Episode 15 - Aired 11/16/2013

Sacred bones... Golden hats... And fragments of sacred objects thought to possess healing properties. All around the world, archaeologists have uncovered mysterious relics revered by ancient cultures for thousands of years. Now on display in museums, temples and churches, millions of people travel great distances just to be in their presence. What is it about these ancient objects that draws people to them? Could the truth of mankind's origins be found in the fabric, metal, stone and bones of our distant past? And could these mysterious relics really provide us with the ability to access divine or otherworldly power?

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Aliens and the Civil War
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7.00
28 votes

#9 - Aliens and the Civil War

Season 7 - Episode 9 - Aired 4/10/2015

The Civil War nearly destroyed the great experiment known as the United States of America, but is it possible that the preservation of the republic was influenced by extraterrestrial beings? Abraham Lincoln described strange visions and premonitions that occur before pivotal moments in his presidency. Union officer Ambrose Bierce wrote about mysterious disappearances and inter-dimensional travel. And a ghostly image of George Washington was witnessed by hundreds of soldiers at Gettysburg–prompting an official government investigation. Is it possible that extraterrestrials were present during the Civil War? If so, were they simply passive observers, waiting to see if our fragile democracy could survive this test? Or did they take an active roll in order to preserve the Union?

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Mysterious Structures
star
7.00
140 votes

#10 - Mysterious Structures

Season 6 - Episode 13 - Aired 6/20/2014

Theorists explain how alien technology may be responsible for massive structures like the 3,000 megalithic stones in the French village of Carna, precision-cut blocks at Puma Punku in Peru and the Gobekli Tepe's 12,000-year-old circular structures.

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Emperors, Kings and Pharaohs
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7.00
84 votes

#11 - Emperors, Kings and Pharaohs

Season 5 - Episode 14 - Aired 11/8/2013

Powerful monarchs ruling by divine right. Centuries-old dynasties amassing enormous wealth. And legendary leaders wielding powerful weapons of mass destruction. Is it possible that ancient rulers were, in fact, connected with divine or, some would say, extraterrestrial forces? And, if so, what was their purpose? Ancient emperors, kings, and pharaohs were often attributed with otherworldly strength, ability, and wisdom; many were even considered gods by the people they ruled. Who were these exceptional leaders, and how did some accomplish so much in their time? Ancient Astronaut theorists believe that these great rulers throughout history were "chosen" and guided by extraterrestrials. Is it possible that the world's legendary leaders might have shared a common genetic trait? A so-called, "leadership gene"? And might this gene have been--not a product of genetic evolution--but inherited by mankind from some otherworldly source?

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The Shadow People
star
7.12
141 votes

#12 - The Shadow People

Season 18 - Episode 8 - Aired 3/4/2022

Millions of people around the world have reported encountering shadowy entities who instill fear, shortness of breath, and even paralysis. Is it possible that the so-called “Shadow People” are more than mere figments of the imagination? Could they be visitors from other worlds… or even other dimensions?

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Beyond Nazca
star
7.15
535 votes

#13 - Beyond Nazca

Season 5 - Episode 3 - Aired 2/15/2013

Erich von Daniken's landmark book, Chariots of the Gods, brought attention to the mysterious phenomena of the Nazca Lines. Hundreds of gigantic lines, some in the shape of animals, geometric patterns and even an alien-like being, extend for miles throughout a remote Peruvian desert. Scholars are divided as to who built them, and why. Some Ancient Astronaut theorists believe that the massive markings have an extraterrestrial connection, and perhaps the ancient people of the region created these gigantic figures in tribute to the gods who visited them. And with one of the largest deposits of nitrates in the world--a key ingredient in rocket fuel and weaponry--could Nazca have been a mining operation for advanced beings in the distant past?

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Secrets of the Star Ancestors
star
7.16
156 votes

#14 - Secrets of the Star Ancestors

Season 18 - Episode 6 - Aired 2/18/2022

In the traditions of native peoples across North America are stories of the Star Ancestors--powerful beings who descended to Earth in the distant past and are sometimes present even today. Might the ancient accounts and depictions of these visitors reveal profound truths about both humanity's origins ... and its future in the stars?

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The Satan Conspiracy
star
7.18
281 votes

#15 - The Satan Conspiracy

Season 5 - Episode 12 - Aired 10/28/2013

He is the evil one, the Prince of Darkness, the ruler of Hell. Satan conjures up horrifying images of a horned beast whose sole purpose is to destroy humanity. Yet there is evidence that the fallen angel we know as Satan may be misunderstood.

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Ancient Aliens on Location: Extraordinary Encounters
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7.19
112 votes

#16 - Ancient Aliens on Location: Extraordinary Encounters

Season 18 - Episode 12 - Aired 7/15/2022

Ancient Aliens has followed investigators across the globe as they've gone directly to the sites where unexplained incidents have been reported. Now, Giorgio Tsoukalos takes a look back at the most extraordinary encounters that, as far as he's concerned, provide evidence of an extraterrestrial presence on Earth.

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Unlocking the Stargates
star
7.19
74 votes

#17 - Unlocking the Stargates

Season 20 - Episode 12 - Aired 7/5/2024

For thousands of years, cultures around the world have held a belief in stargates through which beings have traveled to Earth from distant points in the universe and even other dimensions. Could such portals truly exist? And if we obtain the key to unlocking the stargates, will we find a cosmos teaming with life?

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The Top Ten Alien Disasters
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7.20
71 votes

#18 - The Top Ten Alien Disasters

Season 20 - Episode 6 - Aired 2/16/2024

Ancient Aliens is counting down the top ten most devastating disasters ever documented that might have an otherworldly connection, from a flying monster at a nuclear incident, a meteor that wiped out the dinosaurs, and a deadly virus that might be from another world. Could these disasters be proof of extraterrestrial contact?

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The Einstein Factor
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7.20
168 votes

#19 - The Einstein Factor

Season 4 - Episode 15 - Aired 1/18/2013

Was Albert Einstein a genius? Or was he superhuman? Was his genius "of this world," or was it "otherworldly?" Is it possible, as Ancient Astronaut theorists believe, of an extraterrestrial connection to the scientific genius of famous historical figures such as Albert Einstein, Galileo, Archimedes, and Aristotle?

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The Constellation Code
star
7.22
181 votes

#20 - The Constellation Code

Season 14 - Episode 13 - Aired 8/30/2019

Throughout the ancient world, structures were built to mirror the constellations in the night sky and this is only apparent when they are viewed from high above; a look at the possibility that these structures were designed as messages.

Treasures of the Gods
star
7.22
252 votes

#21 - Treasures of the Gods

Season 6 - Episode 7 - Aired 2/14/2014

Sealed vaults possessing a strange and deadly curse, mysterious relics believed to be under otherworldly protection, and riches so priceless, it has cost men their lives. On every continent there are stories of incredible treasures that have been lost for centuries. Is it possible that the world’s greatest ancient relics are hidden on purpose–and protected by an extraterrestrial source?

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Alien Air Force
star
7.23
155 votes

#22 - Alien Air Force

Season 18 - Episode 7 - Aired 2/25/2022

Since 2017, the Navy has been releasing photos and videos of Unidentified Aerial Phenomena--and Ancient Astronaut Theorists suggest the incredible images are nearly identical to accounts from centuries ago. Could flying pyramids. bell-shaped craft and cylindrical objects represent alien craft that have been roaming Earth's skies for thousands of years?

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Prophets and Prophecies
star
7.24
470 votes

#23 - Prophets and Prophecies

Season 5 - Episode 2 - Aired 2/8/2013

They were the messengers of divine knowledge and seers who shared visions of the future. For thousands of years, human civilization has been guided by the words and deeds of ancient prophets, but just who--or what--were these prophets communicating with? Might the experiences of history's prophets be evidence of communication with a heavenly source--or were seers like Elijah and Joseph Smith actually communicating with extraterrestrial overlords? And if so, are there similar prophets at work today?

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The Shining Ones
star
7.24
107 votes

#24 - The Shining Ones

Season 18 - Episode 17 - Aired 8/19/2022

In Ireland, the notion of the fairy folk dates back thousands of years and originates with stories of powerful shining beings who came down from the sky. Could these tales have been inspired by ancient alien visitation? And if so, do the Shining Ones still inhabit the Irish mounds, existing in a parallel dimension?

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Aliens and Bigfoot
star
7.25
738 votes

#25 - Aliens and Bigfoot

Season 4 - Episode 7 - Aired 3/23/2012

People on every continent have claimed to see the footprints of Bigfoot. And ancient myths and legends speak of an ape-like giant stalking the earth. What if, as Ancient Astronaut theorists believe, there is evidence to connect Bigfoot with an alien species that once visited Earth in the distant past?

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