Ancient Astronaut Theory posits that aliens have been influencing the growth of humans and Earth for millennia - but where are they? Will they ever come back to visit? Have they actually never left? Steve and Joey probe into the fifth episode of the inaugural season of Ancient Aliens - “The Return” - to dive deep into our researchers’ thoughts on The Battle of Los Angeles, Roswell’s cover-up, The British Ministry of Defense’ secret E.T. division, The increase in UFO sightings since World War II, Nazi use of alien technology, the recent influx in UFO sightings since the advent of the portable video camera, SETI, and the big question: if they do return, will they help us...or harm us?