Ancient Aliens: Season 4
Ancient Aliens Season 4 continues the overarching saga across 10 episodes.
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Picks up essential narrative continuity directly following the events of Ancient Aliens Season 3.
- Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
- Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
- Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
Season overview
Ancient Aliens Season 4 continues the overarching saga across 10 episodes.
Episode Guide
Season 4 Progress Shield
The Mayan Conspiracy
Feb 17, 2012
The Mayan civilization dominated Central America for nearly 2000 years, but by the 9th century A.D., the great Mayan cities were abandoned, and the Mayan people vanished. What coul
The Doomsday Prophecies
Feb 17, 2012
The Maya created the most sophisticated calendar systems in the ancient world, and according to many scholars their Long Count Calendar will come to an end on December 21, 2012. Wh
The Greys
Feb 24, 2012
Who are the beings with big heads and giant eyes that seem to have been visiting our planet for millennia? Known by researchers as the "greys," these mysterious beings have been de
Aliens and Mega-Disasters
Mar 2, 2012
There are numerous historical, religious and mythic accounts of ancient civilizations being wiped out by volcanoes, earthquakes, floods, and meteors. Did god, or nature bring about
The NASA Connection
Mar 9, 2012
NASA scientists, former astronauts and secret government files all point to the conclusion that there has been contact with extraterrestrial life in the past. Researchers examine t
The Mystery of Puma Punku
Mar 16, 2012
At nearly 14,000 years old, the ruins of Puma Punku are the oldest and most baffling on the face of the Earth. No one knows who designed and built this complex of sophisticated int
Aliens and Bigfoot
Mar 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
The Da Vinci Conspiracy
Apr 6, 2012
Might an examination of Leonardo Da Vinci's masterful paintings, highly technical hand-drawn sketches, and private journals reveal knowledge of otherworldly technology and extrater
The Time Travelers
Apr 27, 2012
Is it possible that sightings of alien beings or UFOs may actually be evidence of time travelers from the future? And might ancient astronauts actually be time travelers from our f
Aliens and Dinosaurs
May 4, 2012
Angkor Wat, Cambodia, is the world’s largest ancient religious temple. Within its megalithic ruins, researches have discovered a depiction of a species of dinosaur – a stegosaurus