Ancient Aliens (2010)
Season 4: Episode 3
The Greys
TMDb
Air Date:
Release Date
2010
End Date
2025
Episode Description
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 depicted in rock-art and carved stone figures throughout the ages and all over the world. Who are they, what planet do they come from, and what do they want?
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Episode 1
The Evidence
Episode 2
The Visitors
Episode 3
The Mission
Episode 4
Closer Encounters
Episode 5
The Return
Episode 1
Mysterious Places
Episode 2
Gods & Aliens
Episode 3
Underwater Worlds
Episode 4
Underground Aliens
Episode 5
Aliens and the Third Reich
Episode 6
Alien Tech
Episode 7
Angels and Aliens
Episode 8
Unexplained Structures
Episode 9
Alien Devastations
Episode 10
Alien Contacts
Episode 1
Aliens and the Old West
Episode 2
Aliens and Monsters
Episode 3
Aliens and Sacred Places
Episode 4
Aliens and Temples of Gold
Episode 5
Aliens and Mysterious Rituals
Episode 6
Aliens and Ancient Engineers
Episode 7
Aliens, Plagues and Epidemics
Episode 8
Aliens and Lost Worlds
Episode 9
Aliens and Deadly Weapons
Episode 10
Aliens and Evil Places
Episode 11
Aliens and the Founding Fathers
Episode 12
Aliens and Deadly Cults
Episode 13
Aliens and the Secret Code
Episode 14
Aliens and the Undead
Episode 15
Aliens, Gods and Heroes
Episode 16
Aliens and the Creation of Man
Episode 1
The Mayan Conspiracy
Episode 2
The Doomsday Prophecies
Episode 3
The Greys
Episode 4
Aliens and Mega-Disasters
Episode 5
The NASA Connection
Episode 6
The Mystery of Puma Punku
Episode 7
Aliens and Bigfoot
Episode 8
The Da Vinci Conspiracy
Episode 9
The Time Travelers
Episode 10
Aliens and Dinosaurs
Episode 11
Episode 11
Episode 12
Episode 12
Episode 13
Episode 13
Episode 14
Episode 14
Episode 15
Episode 15
Episode 1
Secrets of the Pyramids
Episode 2
Aliens and Cover-Ups
Episode 3
Alien Power Plants
Episode 4
Destination Orion
Episode 5
The Einstein Factor
Episode 6
Secrets of the Tombs
Episode 7
Prophets and Prophecies
Episode 8
Beyond Nazca
Episode 9
Strange Abductions
Episode 10
The Von Daniken Legacy
Episode 11
The Viking Gods
Episode 12
The Monoliths
Episode 13
Episode 13
Episode 14
Episode 14
Episode 15
Episode 15
Episode 1
The Power of Three
Episode 2
The Crystal Skulls
Episode 3
The Anunnaki Connection
Episode 4
Magic of the Gods
Episode 5
The Satan Conspiracy
Episode 6
Alien Operations
Episode 7
Emperors, Kings and Pharaohs
Episode 8
Mysterious Relics
Episode 9
Aliens and Forbidden Islands
Episode 10
Aliens and The Lost Ark
Episode 11
Aliens and Mysterious Mountains
Episode 12
Episode 12
Episode 13
Episode 13
Episode 14
Episode 14
Episode 15
Episode 15
Episode 16
Episode 16
Episode 17
Episode 17
Episode 18
Episode 18
Episode 19
Episode 19
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Aliens and Stargates
Episode 2
Aliens in America
Episode 3
The Star Children
Episode 4
Treasures of the Gods
Episode 5
Aliens and the Red Planet
Episode 6
The Shamans
Episode 7
Aliens and Insects
Episode 8
Alien Breeders
Episode 9
Episode 9
Episode 10
Episode 10
Episode 11
Episode 11
Episode 12
Episode 12
Episode 1
Alien Transports
Episode 2
Mysterious Structures
Episode 3
Mysterious Devices
Episode 4
The Reptilians
Episode 5
The Tesla Experiment
Episode 6
The God Particle
Episode 7
Alien Encounters
Episode 8
Aliens & Superheroes
Episode 9
Episode 9
Episode 10
Episode 10
Episode 1
Forbidden Caves
Episode 2
Mysteries of the Sphinx
Episode 3
Aliens Among Us
Episode 4
The Genius Factor
Episode 5
Secrets of the Mummies
Episode 6
Alien Resurrections
Episode 7
Alien Messages
Episode 8
The Great Flood
Episode 9
Aliens and the Civil War
Episode 10
Hidden Pyramids
Episode 11
The Vanishings
Episode 12
The Alien Agenda
Episode 1
Aliens B.C.
Episode 2
NASA's Secret Agenda
Episode 3
Aliens and Robots
Episode 4
Dark Forces
Episode 5
The Alien Evolution
Episode 6
The Other Earth
Episode 7
Creatures of the Deep
Episode 8
Circles from the Sky
Episode 9
The Alien Wars
Episode 10
The Forbidden Zones
Episode 1
Pyramids of Antarctica
Episode 2
Destination Mars
Episode 3
The Next Humans
Episode 4
The New Evidence
Episode 5
The Visionaries
Episode 6
Decoding the Cosmic Egg
Episode 7
The Wisdom Keepers
Episode 8
The Mysterious Nine
Episode 9
The Hidden Empire
Episode 10
The Prototypes
Episode 11
Space Station Moon
Episode 12
Russia's Secret Files
Episode 13
Beyond Roswell
Episode 14
The Returned
Episode 15
Shiva the Destroyer
Episode 1
The Alien Hunters
Episode 2
Forged by the Gods
Episode 3
The Mystery of Rudloe Manor
Episode 4
The Alien Architects
Episode 5
The Pharaohs' Curse
Episode 6
The Science Wars
Episode 7
City of the Gods
Episode 8
The Alien Frequency
Episode 9
The Majestic Twelve
Episode 10
The Akashic Record
Episode 11
Voices of the Gods
Episode 12
The Animal Agenda
Episode 13
The Replicants
Episode 14
A Spaceship Made of Stone
Episode 15
The Alien Disks
Episode 16
Return to Gobekli Tepe
Episode 1
The UFO Conspiracy
Episode 2
Da Vinci's Forbidden Codes
Episode 3
The Alien Protocols
Episode 4
Earth's Black Holes
Episode 5
The Desert Codes
Episode 6
Area 52
Episode 7
Earth Station Egypt
Episode 8
Island of the Giants
Episode 9
The Taken
Episode 10
The Sentinels
Episode 11
Russia Declassified
Episode 12
They Came From the Sky
Episode 13
The Artificial Human
Episode 14
The Alien Phenomenon
Episode 15
Return to Mars
Episode 1
Return to Antarctica
Episode 2
The Badlands Guardian
Episode 3
Element 115
Episode 4
The Star Gods of Sirius
Episode 5
They Came from the Sea
Episode 6
Secrets of the Maya
Episode 7
The Druid Connection
Episode 8
The Reptilian Agenda
Episode 9
The Alien Infection
Episode 10
Project Hybrid
Episode 11
The Trans-Dimensionals
Episode 12
Islands of Fire
Episode 13
The Constellation Code
Episode 14
The Nuclear Agenda
Episode 15
The Alien Mountain
Episode 16
The Alien Brain
Episode 17
The Secrets of Stonehenge
Episode 18
Food of the Gods
Episode 19
Human Hieroglyphs
Episode 20
The Storming of Area 51
Episode 21
Countdown to Disclosure
Episode 22
Secrets of the Exoplanets
Episode 1
The Mystery of Nan Madol
Episode 2
The Relics of Roswell
Episode 3
Destination Chile
Episode 4
The Real Men in Black
Episode 5
The Mystery of the Stone Giants
Episode 6
The World Before Time
Episode 7
They Came from The Pleiades
Episode 8
The Immortality Machine
Episode 9
The Shapeshifters
Episode 10
The Mystery of Skinwalker Ranch
Episode 11
The Ultimate Guide to UFOs
Episode 12
Aliens and the Presidents
Episode 1
The Divine Number
Episode 2
The Lost Kingdom
Episode 3
The Galactic Keyhole
Episode 4
Giants of the Mediterranean
Episode 5
The Forbidden Bible
Episode 6
William Shatner Meets Ancient Aliens
Episode 7
Impossible Artifacts
Episode 8
The Space Travelers
Episode 9
The UFO Pioneers
Episode 10
The Harmonic Code
Episode 1
The Lost City of Peru
Episode 2
Top Ten Mysterious Sites
Episode 3
Top Ten Alien Cover-Ups
Episode 4
The Mystery of Mount Shasta
Episode 5
The Human Experiment
Episode 6
Top Ten Alien Encounters
Episode 7
Top Ten Alien Artifacts
Episode 1
The Disclosure Event
Episode 2
Mystery of the Standing Stones
Episode 3
Beneath the Sacred Temples
Episode 4
The World on Alert
Episode 5
Recovering The Ark Of The Covenant
Episode 6
Secrets Of The Star Ancestors
Episode 7
Alien Air Force
Episode 8
The Shadow People
Episode 9
Decoding the Dragon Gods
Episode 10
The Time Benders
Episode 11
Ancient Aliens On Location: Incredible Structures
Episode 12
Ancient Aliens On Location: Extraordinary Encounters
Episode 13
Ancient Aliens on Location: The Alien Glyphs
Episode 14
Ancient Aliens On Location: The UFO Investigations
Episode 15
Ancient Aliens On Location: Mysterious Artifacts
Episode 16
Ancient Aliens on Location: Evidence of Alien Life
Episode 17
The Shining Ones
Episode 18
The Journey to Immortality
Episode 19
Secrets of Inner Earth
Episode 20
Return of the Egyptian Gods
Episode 1
The Hotspot Connection
Episode 2
The Crop Circle Code
Episode 3
Mystery of the Lost Civilization
Episode 4
The Power of the Obelisks
Episode 5
The MUFON Files
Episode 6
Cosmic Impacts
Episode 7
Close Encounters of the Fifth Kind
Episode 8
The Mysteries of Alaska
Episode 9
Aliens in our Airspace
Episode 10
The Giants of Malta
Episode 11
The Top Ten Pyramid Sites
Episode 12
The Top Ten Mysterious Devices
Episode 13
The Top Ten Mysterious Islands
Episode 14
The Top Ten Alien Craft
Episode 15
Edgar Cayce: The Sleeping Prophet
Episode 16
The Gods of Greece
Episode 17
The New UFO Hunters
Episode 18
Power of the Talisman
Episode 19
The Top Ten Mysteries of the Deep
Episode 20
The Top Ten Alien Petroglyphs
Episode 1
The Top Ten Alien Influencers
Episode 2
The Top Ten Extraordinary Creatures
Episode 3
The Top Ten Hidden Alien Bases
Episode 4
The Top Ten Scariest Encounters
Episode 5
The Top Ten Alien Codes
Episode 6
The Top Ten Alien Disasters
Episode 7
Secrets Of The Sumerians
Episode 8
The UFO Superhighway
Episode 9
Mysteries of Scotland
Episode 10
Mystery of the Stone Spheres
Episode 11
Mysteries of the Maya
Episode 12
Unlocking the Stargates
Episode 13
The Whistleblowers
Episode 14
The Search For Extraterrestrial Intelligence
Episode 15
Jacques Vallée: UFO Pioneer
Episode 16
The Teachers
Episode 17
Egypt's Giant Tombs
Episode 18
The Linda Moulton Howe Files
Episode 19
The Chosen
Episode 1
The Top Ten Extraordinary Discoveries
Episode 2
The Top Ten Mysterious Monoliths
Episode 3
The Top Ten UFO Crashes
Episode 4
The Top Ten Unexplained Technologies
Episode 5
The Top Ten Secret Projects
Episode 6
The Top Ten Mysterious Mountains
Episode 7
Mysteries of the Aztecs
Episode 8
The Glowing Orb Phenomenon
Episode 9
The Legacy of J. Allen Hynek
Episode 10
The Volcano Factor
Episode 11
The Birdman Mystery
Episode 12
The Abduction Files
Episode 13
The Giants
Episode 14
Aliens In Our Midst
Episode 15
Britain's UFO Files
Episode 16
Mysteries Of The Norse Gods
Episode 17
Secrets of Japan
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