Episode Guide

Secrets of the Pyramids

"Secrets of the Pyramids" explores whether ancient burial sites worldwide served not merely as tombs but as gateways for souls to return to extraterrestrial origins. The episode examines structures from Egypt's Valley of the Kings to King Pakal's tomb in Palenque, Mexico, questioning why cultures separated by oceans built massive monuments connected to astronomy and otherworldly realms. Ancient astronaut theorists argue that shared motifs—celestial alignments, solar boats sealed in chambers, and texts describing dimensional travel—suggest a common extraterrestrial source. At Saqqara, Egypt, the Pyramid of King Teti contains the Pyramid Texts from 2400 BC, which theorists interpret as instructions for reuniting the deceased with beings from the stars rather than symbolic preparation for a mythological afterlife.

Aliens and Cover-Ups

This episode investigates whether governments worldwide have systematically concealed evidence of extraterrestrial contact, focusing on incidents like the 1980 Rendlesham Forest encounter in the UK, where military personnel reportedly encountered a craft and received binary-coded messages, and the 1973 Strategic Air Command radar detection at Offutt Air Force Base, where Sergeant Ken Storch claims five unidentified objects crossed from the Pacific Northwest into Soviet territory in under two minutes, prompting direct communication between Nixon and the Kremlin. Ancient astronaut theorists argue that incidents like the 1942 "Battle of Los Angeles"—where nearly 2,000 rounds of anti-aircraft fire allegedly failed to damage a diamond-shaped object—and the 1947 Roswell crash demonstrate a pattern of otherworldly visitation that governments have deliberately hidden through non-disclosure agreements and official denials, possibly to prevent societal collapse.

Alien Power Plants

This episode explores whether ancient civilizations possessed electrical technology, potentially with extraterrestrial assistance. Ancient astronaut theorists point to the Dendera light reliefs in Egyptian tombs, which they interpret as depictions of functional light bulbs, and the Baghdad Battery—a clay jar containing copper and iron from ancient Mesopotamia that some believe could generate electrical current. Giorgio Tsoukalos and others argue that massive stone constructions like the 4.8-million-pound Trilithon blocks at Baalbek required powered machinery to move, and that the Great Pyramid of Giza may have functioned as an energy-generating microwave facility. William Henry proposes that a wireless energy grid once spanned the globe, transmitting power to "celestial beings," while David Childress suggests evidence of nuclear reactions points to ancient alien power plants.

Destination Orion

Ancient cultures around the world—from Egypt to Greece to the Americas—built monuments and mythologies around the constellation Orion, and this episode asks whether that's evidence of extraterrestrial contact. Ancient astronaut theorists point to the alignment of the three pyramids at Giza with Orion's belt stars (Alnilam, Alnitak, and Mintaka), alongside similar star-mapping patterns found in civilizations separated by oceans and millennia. The episode proposes that Orion, particularly the Orion Nebula captured in unprecedented detail by Hubble in 2006, may have been a "stargate" or point of origin for alien visitors, explaining why disparate cultures depicted the constellation as a giant or striding figure and embedded its coordinates in sand and stone 7,000 years ago.

The Einstein Factor

This episode asks whether Albert Einstein's revolutionary genius was entirely human or had an extraterrestrial source. Ancient astronaut theorists point to Einstein's radical reimagining of physics—particularly his Theory of General Relativity, famously confirmed during the 1919 solar eclipse on Principe Island off Africa's west coast when Arthur Eddington photographed starlight bending around the sun exactly as Einstein predicted. The episode suggests Einstein's ability to overturn Newton's centuries-old laws and reconceptualize space-time as warped and dynamic, rather than flat and static, might indicate something "otherworldly" about his intellect. Theorists question whether individuals with extraordinary gifts throughout history—Einstein, Galileo, Archimedes, Aristotle—possessed abilities beyond normal human capacity, potentially drawing on alien knowledge that could unlock secrets like time travel.

Secrets of the Tombs

This episode examines why ancient burial sites around the world—from Egypt's Valley of the Kings to King Pakal's tomb in Palenque, Mexico—share striking similarities in design, astronomical alignments, and symbolic content. Ancient astronaut theorists, citing the Pyramid Texts found in Egypt's Pyramid of Teti at Saqqara (dating to 2400 BC), argue these elaborate structures weren't merely tombs but functional "gateways" or "stargates" designed to reconnect the deceased with extraterrestrial ancestors. The episode highlights how burial chambers across cultures contain celestial maps, boats meant for "otherworldly travel," and references to spiritual journeys through the cosmos, suggesting that ancient "gods" provided this architectural knowledge to help human souls navigate back to distant star systems.

Prophets and Prophecies

This episode explores whether ancient prophets like Moses, Elijah, and Isaiah were communicating with divine sources or extraterrestrial intelligences. Ancient astronaut theorists including Philip Coppens and David Childress argue that the "anomalous experiences" described in religious texts—glowing clouds, pillars of fire, voices from the heavens—suggest contact with nonhuman entities rather than purely spiritual encounters. The episode focuses on locations like Gebel Khashm el-Tarif in Egypt's Sinai desert, believed to be where Moses encountered the burning bush and received the Ten Commandments, and examines whether prophets possessed special abilities to communicate with otherworldly forces. Giorgio Tsoukalos questions whether these figures were "just a figment of our ancestors' imagination or did they exist," while theorists like Timothy Downing suggest prophets were deliberately chosen as "spokespersons for the extraterrestrial powers trying to rule the world."

Beyond Nazca

"Beyond Nazca" revisits the iconic Peruvian geoglyphs first popularized by Erich von Däniken's *Chariots of the Gods*, asking whether the hundreds of massive figures—animals, geometric shapes, and a mysterious humanoid—might have been created to honor extraterrestrial visitors. Ancient astronaut theorists, including von Däniken himself, point to the scale of the lines (some extending nearly nine miles) and their visibility only from the sky as evidence they were never intended for human eyes alone. The episode also highlights the Nazca region's vast nitrate deposits, speculating whether ancient aliens mined the area for rocket fuel components, with the geoglyphs serving as territorial markers or tributes. Elongated skulls found in the region add another layer, presented as potential evidence of non-human influence.

Strange Abductions

This episode examines the Travis Walton case—the 1975 incident in Arizona's Apache-Sitgreaves National Forest where a forestry worker claims he was struck by a beam of light from a hovering disc and vanished for five days—as a modern example of what ancient astronaut theorists argue is a millennia-old abduction phenomenon. The episode connects Walton's account, which includes missing time and encounters with humanoid beings, to biblical figures like Jonah, Moses, Ezekiel, and Enoch, whose narratives describe being physically taken to other realms by otherworldly entities. Drawing on astronomer J. Allen Hynek's close encounter classification system developed during Project Blue Book, the theorists propose that sleep paralysis, teleportation experiences, and even the disappearance of entire ancient cultures may reflect an ongoing extraterrestrial agenda spanning thousands of years.

The Von Daniken Legacy

This episode examines the life and influence of Erich von Däniken, whose 1968 book "Chariots of the Gods?" launched the modern ancient astronaut movement and has sold over 65 million copies worldwide. Von Däniken's central argument—that extraterrestrial beings visited Earth in ancient times and made contact with early civilizations—emerged from his teenage questioning of religious texts and evolved into a global phenomenon. Theorists featured in the episode, including Giorgio Tsoukalos and Robert Bauval, argue that von Däniken's work opened crucial questions about unexplained ancient structures like the Egyptian pyramids, which Tsoukalos claims were built "with the assistance of the Guardians of the Sky." The episode positions von Däniken as either visionary or heretic, exploring how his theories gained traction during the space race era when humanity's own journey to the moon made interstellar travel seem suddenly plausible.

The Viking Gods

Season 5's "The Viking Gods" asks whether the Norse pantheon—Odin, Thor, and Frey—might have been extraterrestrial visitors rather than mythological deities. Ancient astronaut theorists point to descriptions of advanced technology in Norse mythology: Thor's hammer that could level mountains with perfect accuracy, the Bifrost rainbow bridge interpreted as a possible wormhole connecting Earth to another planet, and gleaming chariots crossing the skies. The episode highlights the Vikings' remarkable technological sophistication—perfectly circular fortresses in Denmark, advanced shipbuilding, and proto-democratic assemblies—alongside their extraordinary exploration reaching Newfoundland, Canada (confirmed by 1960s archaeological discoveries) five centuries before Columbus. Proponents suggest these achievements required otherworldly guidance, questioning how a civilization could navigate across the Atlantic without prior knowledge of land on the other side.

The Monoliths

This episode explores why ancient civilizations across the globe—from the Salisbury Plain in England to the jungles of Costa Rica—constructed massive stone monuments using monoliths weighing thousands of pounds. Ancient astronaut theorists, including those featured throughout the episode, propose that these structures may have been built under extraterrestrial instruction or to serve as reconnection points with celestial visitors. The episode highlights Stonehenge, the 4,000-year-old megalithic structure in Wiltshire, as a prime example of this mysterious "megalithic period" when cultures across Europe and Asia simultaneously began moving and arranging enormous stones in sophisticated patterns. Theorists suggest these monoliths might emit energy, create dimensional bridges, or hold advanced powers we haven't yet understood, pointing to the remarkable similarity of stone monuments worldwide as evidence of a common, possibly otherworldly, source of knowledge.