Ancient Aliens is counting down ten of the most intriguing-and mysterious-symbols and codes found across the globe that just might contain proof of otherworldly contact. From glyphs in the Peruvian desert, to spiral petroglyphs embedded with advanced math, and a language with an otherworldly origin, could these codes unlock the secrets of our extraterrestrial past?

Ancient Aliens Season 18 Episodes...

• s18e01 - The Top Ten Alien Influencers
• s18e02 - The Top Ten Extraordinary Creatures
• s18e03 - Top 10 Hidden Alien Bases
• s18e04 - The Top Ten Scariest Encounters
• s18e05 - The Top Ten Alien Codes
• s18e06 - The Top Ten Alien Disasters
• s18e07 - Secrets of the Sumerians
• s18e08 - The UFO Superhighway
• s18e09 - Mysteries of Scotland
• s18e10 - Mystery of the Stone Spheres

Ancient Aliens Show Summary

Presented in the 1968 bestselling book Chariots of the Gods by Erich von Daniken, the theory of "ancient aliens" rocked people's beliefs in mankind's progress. Ancient cave drawings of strange creatures, remains of landing strips in Peru, and Indian texts that describe the "flying machines of the gods" were just a few of the odd archaeological artefacts cited by von Daniken as proof that ancient astronauts were well known to our ancestors. Produced with the exclusive cooperation of von Daniken himself, Ancient Aliens launches all-new expeditions to seek out and evaluate this evidence, with a concentration on the latest discoveries of the last 30 years, including unusual DNA findings on man's evolution and newly decoded artefacts from Egypt to Syria to South America. It is a balanced investigation into a theory some believe cannot be true, but many agree cannot be ignored.

** Please Note: the schedule for Ancient Aliens is a 'best fit'. The official order has changed multiple times, and no one source agrees with another **