Counting down 10 intriguing symbols and codes found across the globe that might contain proof of otherworldly contact; from glyphs in the Peruvian desert, to spiral petroglyphs embedded with advanced math, and a language with an unexplained origin.
Director:

Mitch Marcus
Cast:

Robert Clotworthy

Giorgio Tsoukalos

Erich von Däniken

David Childress

William Henry

Linda Moulton Howe

David Wilcock

Jonathan Young

Jason Martell