serial.
Ancient Aliens poster
Running · 2009–

Ancient Aliens

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 in this hit History series 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?

Track episodes, rate & review

Next on air

No next air date announced.

Seasons & episodes

Season 1 · 6 episodes
  1. S01 Special · Chariots, Gods & Beyond
  2. S01 E01 · The Evidence
  3. S01 E02 · The Visitors
  4. S01 E03 · The Mission
  5. S01 E04 · Closer Encounters
  6. S01 E05 · The Return
Season 2 · 10 episodes
  1. S02 E01 · Mysterious Places
  2. S02 E02 · Gods & Aliens
  3. S02 E03 · Underwater Worlds
  4. S02 E04 · Underground Aliens
  5. S02 E05 · Aliens and the Third Reich
  6. S02 E06 · Alien Tech
  7. S02 E07 · Angels and Aliens
  8. S02 E08 · Unexplained Structures
  9. S02 E09 · Alien Devastations
  10. S02 E10 · Alien Contacts
Season 3 · 16 episodes
  1. S03 E01 · Aliens and the Old West
  2. S03 E02 · Aliens and Monsters
  3. S03 E03 · Aliens and Sacred Places
  4. S03 E04 · Aliens and Temples of Gold
  5. S03 E05 · Aliens and Mysterious Rituals
  6. S03 E06 · Aliens and Ancient Engineers
  7. S03 E07 · Aliens, Plagues and Epidemics
  8. S03 E08 · Aliens and Lost Worlds
  9. S03 E09 · Aliens and Deadly Weapons
  10. S03 E10 · Aliens and Evil Places
  11. S03 E11 · Aliens and the Founding Fathers
  12. S03 E12 · Aliens and Deadly Cults
  13. S03 E13 · Aliens and the Secret Code
  14. S03 E14 · Aliens and the Undead
  15. S03 E15 · Aliens, Gods and Heroes
  16. S03 E16 · Aliens and the Creation of Man
Season 4 · 10 episodes
  1. S04 E01 · The Mayan Conspiracy
  2. S04 E02 · The Doomsday Prophecies
  3. S04 E03 · The Greys
  4. S04 E04 · Aliens and Mega-Disasters
  5. S04 E05 · The NASA Connection
  6. S04 E06 · The Mystery of Puma Punku
  7. S04 E07 · Aliens and Bigfoot
  8. S04 E08 · The Da Vinci Conspiracy
  9. S04 E09 · The Time Travelers
  10. S04 E10 · Aliens and Dinosaurs
Season 5 · 12 episodes
  1. S05 E01 · Secrets of the Pyramids
  2. S05 E02 · Aliens and Cover-Ups
  3. S05 E03 · Alien Power Plants
  4. S05 E04 · Destination Orion
  5. S05 E05 · The Einstein Factor
  6. S05 E06 · Secrets of the Tombs
  7. S05 E07 · Prophets and Prophecies
  8. S05 E08 · Beyond Nazca
  9. S05 E09 · Strange Abductions
  10. S05 E10 · The von Däniken Legacy
  11. S05 E11 · The Viking Gods
  12. S05 E12 · The Monoliths
Season 6 · 11 episodes
  1. S06 E01 · The Power of Three
  2. S06 E02 · The Crystal Skulls
  3. S06 E03 · The Anunnaki Connection
  4. S06 E04 · Magic of the Gods
  5. S06 E05 · The Satan Conspiracy
  6. S06 E06 · Alien Operations
  7. S06 E07 · Emperors, Kings and Pharaohs
  8. S06 E08 · Mysterious Relics
  9. S06 E09 · Aliens and Forbidden Islands
  10. S06 E10 · Aliens and the Lost Ark
  11. S06 E11 · Aliens and Mysterious Mountains
Season 7 · 8 episodes
  1. S07 E01 · Aliens and Stargates
  2. S07 E02 · Aliens in America
  3. S07 E03 · The Star Children
  4. S07 E04 · Treasures of the Gods
  5. S07 E05 · Aliens and the Red Planet
  6. S07 E06 · The Shamans
  7. S07 E07 · Aliens and Insects
  8. S07 E08 · Alien Breeders
Season 8 · 9 episodes
  1. S08 E01 · Alien Transports
  2. S08 E02 · Mysterious Structures
  3. S08 E03 · Mysterious Devices
  4. S08 E04 · Faces of the Gods
  5. S08 E05 · The Reptilians
  6. S08 E06 · The Tesla Experiment
  7. S08 E07 · The God Particle
  8. S08 E08 · Alien Encounters
  9. S08 E09 · Aliens & Superheroes
Season 9 · 19 episodes
  1. S09 E01 · Forbidden Caves
  2. S09 E02 · Mysteries of the Sphinx
  3. S09 E03 · Aliens Among Us
  4. S09 E04 · The Genius Factor
  5. S09 E05 · Secrets of the Mummies
  6. S09 E06 · Alien Resurrections
  7. S09 E07 · Alien Messages
  8. S09 E08 · The Great Flood
  9. S09 E09 · Aliens and the Civil War
  10. S09 E10 · Hidden Pyramids
  11. S09 E11 · The Vanishings
  12. S09 E12 · The Alien Agenda
  13. S09 Special · The Ultimate Evidence: Beyond Nazca
  14. S09 Special · The Ultimate Evidence: The Monoliths
  15. S09 Special · The Ultimate Evidence: The Tesla Experiment
  16. S09 Special · The Ultimate Evidence: Alien Power Plants
  17. S09 Special · The Ultimate Evidence: The Mystery of Puma Punku
  18. S09 Special · The Ultimate Evidence: Alien Messages
  19. S09 Special · The Ultimate Evidence: Aliens and the Lost Ark
Season 10 · 11 episodes
  1. S10 E01 · Aliens B.C.
  2. S10 Special · The Ultimate Evidence: Aliens and the Creation of Man
  3. S10 E02 · NASA's Secret Agenda
  4. S10 E03 · Aliens and Robots
  5. S10 E04 · Dark Forces
  6. S10 E05 · The Alien Evolution
  7. S10 E06 · The Other Earth
  8. S10 E07 · Creatures of the Deep
  9. S10 E08 · Circles from the Sky
  10. S10 E09 · The Alien Wars
  11. S10 E10 · The Forbidden Zones
Season 11 · 15 episodes
  1. S11 E01 · Pyramids of Antarctica
  2. S11 E02 · Destination Mars
  3. S11 E03 · The Next Humans
  4. S11 E04 · The New Evidence
  5. S11 E05 · The Visionaries
  6. S11 E06 · Decoding the Cosmic Egg
  7. S11 E07 · The Wisdom Keepers
  8. S11 E08 · The Mysterious Nine
  9. S11 E09 · The Hidden Empire
  10. S11 E10 · The Prototypes
  11. S11 E11 · Space Station Moon
  12. S11 E12 · Russia's Secret Files
  13. S11 E13 · Beyond Roswell
  14. S11 E14 · The Returned
  15. S11 E15 · Shiva the Destroyer
Season 12 · 16 episodes
  1. S12 E01 · The Alien Hunters
  2. S12 E02 · Forged by the Gods
  3. S12 E03 · The Mystery of Rudloe Manor
  4. S12 E04 · The Alien Architects
  5. S12 E05 · The Pharaohs' Curse
  6. S12 E06 · The Science Wars
  7. S12 E07 · City of the Gods
  8. S12 E08 · The Alien Frequency
  9. S12 E09 · The Majestic Twelve
  10. S12 E10 · The Akashic Record
  11. S12 E11 · Voices of the Gods
  12. S12 E12 · The Animal Agenda
  13. S12 E13 · The Replicants
  14. S12 E14 · A Spaceship Made of Stone
  15. S12 E15 · The Alien Disks
  16. S12 E16 · Return to Gobekli Tepe
Season 13 · 15 episodes
  1. S13 E01 · The UFO Conspiracy
  2. S13 E02 · Da Vinci's Forbidden Codes
  3. S13 E03 · The Alien Protocols
  4. S13 E04 · Earth's Black Holes
  5. S13 E05 · The Desert Codes
  6. S13 E06 · Area 52
  7. S13 E07 · Earth Station Egypt
  8. S13 E08 · Island of the Giants
  9. S13 E09 · The Taken
  10. S13 E10 · The Sentinels
  11. S13 E11 · Russia Declassified
  12. S13 E12 · They Came from the Sky
  13. S13 E13 · The Artificial Human
  14. S13 E14 · The Alien Phenomenon
  15. S13 E15 · Return to Mars
Season 14 · 22 episodes
  1. S14 E01 · Return to Antarctica
  2. S14 E02 · The Badlands Guardian
  3. S14 E03 · Element 115
  4. S14 E04 · The Star Gods of Sirius
  5. S14 E05 · They Came from the Sea
  6. S14 E06 · Secrets of the Maya
  7. S14 E07 · The Druid Connection
  8. S14 E08 · The Reptilian Agenda
  9. S14 E09 · The Alien Infection
  10. S14 E10 · Project Hybrid
  11. S14 E11 · The Trans-Dimensionals
  12. S14 E12 · Islands of Fire
  13. S14 E13 · The Constellation Code
  14. S14 E14 · The Nuclear Agenda
  15. S14 E15 · The Alien Mountain
  16. S14 E16 · The Alien Brain
  17. S14 E17 · The Secrets of Stonehenge
  18. S14 E18 · Food of the Gods
  19. S14 E19 · Human Hieroglyphs
  20. S14 E20 · The Storming of Area 51
  21. S14 E21 · Countdown to Disclosure
  22. S14 E22 · Secrets of the Exoplanets
Season 15 · 12 episodes
  1. S15 E01 · The Mystery of Nan Madol
  2. S15 E02 · The Relics of Roswell
  3. S15 E03 · Destination Chile
  4. S15 E04 · The Real Men in Black
  5. S15 E05 · The Mystery of the Stone Giants
  6. S15 E06 · The World Before Time
  7. S15 E07 · They Came from the Pleiades
  8. S15 E08 · The Immortality Machine
  9. S15 E09 · The Shapeshifters
  10. S15 E10 · The Mystery of Skinwalker Ranch
  11. S15 E11 · The Ultimate Guide to UFO's
  12. S15 E12 · Aliens and the Presidents
Season 16 · 10 episodes
  1. S16 E01 · The Divine Number
  2. S16 E02 · The Lost Kingdom
  3. S16 E03 · The Galactic Keyhole
  4. S16 E04 · Giants of the Mediterranean
  5. S16 E05 · The Forbidden Bible
  6. S16 E06 · William Shatner Meets Ancient Aliens
  7. S16 E07 · Impossible Artifacts
  8. S16 E08 · The Space Travelers
  9. S16 E09 · The UFO Pioneers
  10. S16 E10 · The Harmonic Code
Season 17 · 7 episodes
  1. S17 E01 · The Lost City of Peru
  2. S17 E02 · Top Ten Mysterious Sites
  3. S17 E03 · Top Ten Alien Cover-Ups
  4. S17 E04 · The Mystery of Mount Shasta
  5. S17 E05 · The Human Experiment
  6. S17 E06 · Top Ten Alien Encounters
  7. S17 E07 · Top Ten Alien Artifacts
Season 18 · 20 episodes
  1. S18 E01 · The Disclosure Event
  2. S18 E02 · Mystery of the Standing Stones
  3. S18 E03 · Beneath the Sacred Temples
  4. S18 E04 · The World on Alert
  5. S18 E05 · Recovering the Ark of the Covenant
  6. S18 E06 · Secrets of the Star Ancestors
  7. S18 E07 · Alien Air Force
  8. S18 E08 · The Shadow People
  9. S18 E09 · Decoding the Dragon Gods
  10. S18 E10 · The Time Benders
  11. S18 E11 · Ancient Aliens On Location: Incredible Structures
  12. S18 E12 · Ancient Aliens On Location: Extraordinary Encounters
  13. S18 E13 · Ancient Aliens On Location: Decoding The Alien Glyphs
  14. S18 E14 · Ancient Aliens On Location: The UFO Investigations
  15. S18 E15 · Ancient Aliens On Location: Mysterious Artifacts
  16. S18 E16 · Ancient Aliens On Location: Evidence of Alien Life
  17. S18 E17 · The Shining Ones
  18. S18 E18 · The Journey to Immortality
  19. S18 E19 · Secrets of Inner Earth
  20. S18 E20 · Return of the Egyptian Gods
Season 19 · 20 episodes
  1. S19 E01 · The Hotspots Connection
  2. S19 E02 · The Crop Circle Code
  3. S19 E03 · Mystery of the Lost Civilization
  4. S19 E04 · The Power of the Obelisks
  5. S19 E05 · The MUFON Files
  6. S19 E06 · Cosmic Impacts
  7. S19 E07 · Close Encounters of the Fifth Kind
  8. S19 E08 · The Mysteries of Alaska
  9. S19 E09 · Aliens in our Airspace
  10. S19 E10 · The Giants of Malta
  11. S19 E11 · The Top Ten Pyramid Sites
  12. S19 E12 · The Top Ten Mysterious Devices
  13. S19 E13 · The Top Ten Mysterious Islands
  14. S19 E14 · The Top Ten Alien Craft
  15. S19 E15 · Edgar Cayce: The Sleeping Prophet
  16. S19 E16 · The Gods of Greece
  17. S19 E17 · The New UFO Hunters
  18. S19 E18 · Power of the Talisman
  19. S19 E19 · The Top Ten Mysteries of the Deep
  20. S19 E20 · The Top Ten Alien Petroglyphs
Season 20 · 20 episodes
  1. S20 E01 · The Top Ten Alien Influencers
  2. S20 E02 · The Top Ten Extraordinary Creatures
  3. S20 E03 · The Top Ten Hidden Alien Bases
  4. S20 E04 · The Top Ten Scariest Encounters
  5. S20 E05 · The Top Ten Alien Codes
  6. S20 E06 · The Top Ten Alien Disasters
  7. S20 E07 · Secrets of the Sumerians
  8. S20 E08 · The UFO Superhighway
  9. S20 E09 · Mysteries of Scotland
  10. S20 E10 · Mystery of the Stone Spheres
  11. S20 E11 · Mysteries of the Maya
  12. S20 E12 · Unlocking The Stargates
  13. S20 E13 · The Whistleblowers
  14. S20 E14 · The Search for Extraterrestrial Intelligence
  15. S20 E15 · Jacques Vallée: UFO Pioneer
  16. S20 E16 · The Teachers
  17. S20 E17 · Egypt's Giant Tombs
  18. S20 E18 · The Linda Moulton Howe Files
  19. S20 E19 · The Chosen
  20. S20 E20 · Resurrecting Puma Punku
Season 21 · 17 episodes
  1. S21 E01 · The Top Ten Extraordinary Discoveries
  2. S21 E02 · The Top Ten Mysterious Monoliths
  3. S21 E03 · The Top Ten UFO Crashes
  4. S21 E04 · The Top Ten Unexplained Technologies
  5. S21 E05 · The Top Ten Secret Projects
  6. S21 E06 · The Top Ten Mysterious Mountains
  7. S21 E07 · Mysteries of the Aztecs
  8. S21 E08 · The Glowing Orb Phenomenon
  9. S21 E09 · The Legacy Of J. Allen Hynek
  10. S21 E10 · The Volcano Factor
  11. S21 E11 · The Birdman Mystery
  12. S21 E12 · The Abduction Files
  13. S21 E13 · The Giants
  14. S21 E14 · Aliens In Our Midst
  15. S21 E15 · Britain's UFO Files
  16. S21 E16 · Mysteries Of The Norse Gods
  17. S21 E17 · Secrets Of Japan
Season 22 · 15 episodes
  1. S22 E01 · Skulls of the Gods
  2. S22 E02 · Egypt's Lost Pyramid
  3. S22 E03 · Islands of the Gods
  4. S22 E04 · Extraterrestrial Engineering
  5. S22 E05 · UFO Hot Spots
  6. S22 E06 · Mysterious Monuments
  7. S22 E07 · Underwater Alien Bases
  8. S22 E08 · Secrets of the Vedas
  9. S22 E09 · Wars of the Gods
  10. S22 E10 · UFO Sightings
  11. S22 E11 · Alien A.I.
  12. S22 E12 · Hidden Messages
  13. S22 E13 · Secrets of the Amazon
  14. S22 E14 · Alien Investigators
  15. S22 E15 · Africa's Extraterrestrial Contact

TV data from TVmaze under CC BY-SA. Air dates follow the original broadcaster and may change.