From Truman to Obama, our modern day Presidents have all had rich and controversial histories with UFOs and extraterrestrials. In fact, Eisenhower, Nixon, Carter, and Reagan are each rumored to have had personal encounters. Inside HANGAR 1, MUFON files ask, "What do our presidents really know about the existence of UFOs?" Are some Presidents kept in the dark because they aren't trusted with that knowledge and how they might use it? Or, are they all aware, but the secrets are too dark and deep that full disclosure becomes a risk they just can't take?

Hangar 1 files suggest that beneath mountain ranges, deserts and perhaps even one public airport, there exist Deep Underground Military Bases that are rumored to be the nerve center for some of the U.S. military's darkest secrets. Activities rumored to take place in these underground bunkers involve the study of UFOs, alien life, and black project technologies. MUFON also exposes new, shocking files that reveal an alliance might exist between our government and an underground alien civilization. Is the U.S. government housing UFOs in these underground bases and could extraterrestrials already be living here on earth? We already look to the skies for proof of the existence of UFOs, but perhaps we should also be looking below our feet.

Could the greatest inventions of the twentieth century and beyond potentially be the products of reverse engineered alien technology? Inside Hangar 1, MUFON files trace mankind's technological boom to materials reportedly recovered from UFO crashes in the 1940s. MUFON investigates allegations of alien engineering, from the birth of the transistor in the 1950s, to military UFOs in the Middle East. Is our modern world built on a foundation of borrowed--or stolen--technology?

Inside Hangar 1, MUFON archives contain dozens of reports of UFO crashes–yet few of these incidents ever reach the public. In 1976, a UFO crash along the Gulf of Mexico leads to a confrontation between the U.S. and Mexico, with a deadly aftermath. In the 1800s, a small farm town holds a public funeral for an extraterrestrial pilot of a crashed flying saucer. And in Kecksburg, Pennsylvania, one man's search for the truth behind a 1965 UFO crash may have led to his murder. Who is covering up evidence of UFO crashes, and how far will they go to keep you from knowing the truth?

Demonic seduction… hybrid offspring… and strange abductions. In cultures throughout the world, there are tales of intimate encounters with otherworldly beings. But could these stories be more than just mythology? Scientific deconstruction of human genetic makeup has revealed that our origins are not what we once believed. Biologists have determined that early humans mated with several other species of intelligent hominids. Neanderthals, Denisovans, and a third–as of yet unidentified–species may also be represented in our DNA. Is it possible that tales spanning from fallen angels to Greek gods, medieval incubus and succubus to today's extraterrestrial sexual encounters are all one in the same? And if so, is it all part of a greater agenda? Might examining these experiences provide not only evidence of extraterrestrial sexual intervention in the remote past, but also reveal the true nature of mankind's origins?

Hangar 1 files reveal that President Ronald Reagan's personal encounters with UFOs may have been the driving force behind the Strategic Defense Initiative, a controversial program that may have led to a top secret space weapons platform to protect us from attacks from space. Waves of UFO sightings across the world may, in fact, be evidence of a secret fleet of military UFOs that we've created. Has NASA and the U.S. government been secretly building this program to protect us against alien and asteroid attacks? A look into MUFON's files suggests that these space weapons may already be in place.

Commercial airline pilots and flight crew spend more time in the sky than anyone. It's no surprise, then, that many UFO sighting reports have been generated by pilots and airline personnel. UFOs have chased commercial flights and even collided with them. One UFO hovered in plain sight above Chicago's O'Hare Airport and was seen by dozens of witnesses. However, despite thousands of sightings, pilots are still discouraged from publicizing their experiences, and the few that do have faced professional ridicule and loss of their jobs. Hangar 1 files uncover many UFO incidents, and suggest that the next time you fly, keep your window shade open. You never know what you might see up in the skies.

Hangar 1 files suggest that when it comes to UFOs, there is a shadow government that operates beyond public and congressional scrutiny to protect and conceal information about the phenomenon. Stories of the Men in Black expose the extreme measures taken to protect these secrets from being revealed. If this shadow government does exist, what information do they have regarding the existence of UFOs? Hangar 1 files investigate the origins of this shadow government, and the case files that expose their actions.