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