Explore themes that inspired films such as Ridley Scott's Prometheus

Could natural disasters really be the work of extra-terrestrial forces? In 2011, after a 10-metre tsunami smashed into the coast of Japan, the local media reported more than 1,000 UFO sightings over the affected area. Did otherworldly beings that descended from the sky have anything to do with the abrupt disappearance of the Mayans? Does the Mayan Long Count Calendar, which predicts the end of the world, give credence to the Doomsday Prophecies? Are Grey Aliens real? Many have claimed to have been visited and even abducted by the creatures known as The Greys. Is NASA sharing all that it knows about the universe, or are they protecting us from the truth? ANCIENT ALIENS SEASON FOUR continues to examine 25 thousand years of the most credible evidence of alien influence on Earth.