Discusses various accounts of the flood around the world and the quest for Noah's Ark, Atlantis, Velikovsky and his theories of cosmic catastrophism, the search for ancient astronauts in the Bible, the Piri Reis map, the Nazca lines, the Palenque "astronaut", mysteries of the Egyptian pyramids, and early voyagers to the Americas, including the Vikings, Atlanteans, Southeast Asians, Africans, and people from the ancient Near East.