Aleksandr Kazantsev

Soviet cosmonauts land on the planet Venus and find it teeming with life, some of it dangerous.

Documentary based on the book by Erich von Däniken concerning the ancient mysteries of the world, such as the pyramids of Egypt and Mexico, ancient cave drawings, the monuments of Easter Island, etc., and the fact that these things and modern civilisation could have been influenced by extraterrestrial visitations hundreds (or perhaps thousands) of years ago.