Seasons & episodes

Every day, millions take to the sky in commercial flights all over the world. But decades of evidence have revealed we may not be the world's only frequent flyers. Are we in danger of losing control of our skies to extraterrestrial beings?

It's the stuff of nightmares. Emergency lines flooded with calls as UFOs appear in the sky. Mounting evidence has revealed that UFO waves are able to penetrate the world's most closely guarded airspace.

It's the ultimate close encounter. There have been thousands of reported cases all over the world. But these claims are almost invariably dismissed by authorities with little or no investigation.

UFOs. They can fly at blinding speed. Or hover effortlessly just a few feet above the ground. And they can do it all without making a sound. But how is this possible? The mysteries of anti-gravity propulsion are unsealed.

Nations all over the world are rumored to have recovered metal debris from these UFO crashes. From self-healing hulls to sinister alien implants, join is as the secrets of UFO metals are UNSEALED.

The flying saucer. For decades it's been synonymous with UFO terror. But millions of reported encounters tell a very different story. From Cold War showdowns to telepathic terrors, join is as we track the rise of Black Triangles.

Experts have long believed the universe to be riddled with mysterious portals - shortcuts through space that allow travelers to span vast distances in the blink of an eye. From mighty volcanoes to secret underground civilizations.

Do visitors to planet Earth come from some far off galaxy? Traveling vast distances to the only planet boasting intelligent life in this corner of space. We investigate the shocking secrets of alien civilizations in our solar system.

The Nazis. Led by Adolf Hitler, they were the greatest evil the world has ever known. In just ten years, Hitler took Germany from crushing depression to world domination. Did the Nazis have access to alien technology?

Do aliens exist? And have they visited planet Earth? These are perhaps the most important questions of our time. For decades, eyewitnesses have come forward with unsettling stories of alien bodies recovered from crashed UFOs.

Our world is home to many UFO hot spots, where unidentified objects are reported with alarming regularity. But a select few locations have something extra. They're notorious for strange paranormal phenomenon to extraterrestrial activity.

For decades, UFO researchers have demanded that the government reveals what is knows about UFOs. Who will make the announcement? When will they do it? And what will it mean for the very bedrock institutions of society?

It can happen to anyone at anytime; a close encounter with a UFO. Citizens all over the world have been reporting incidents with alarming increase. We are counting down the top ten civilian close encounters of all time.

Many believe aliens are already here on Earth. But why are they here? Are aliens planning an all-out attack on planet Earth? And if they are, is there any way we can fight back?

Many experts believe aliens have visited the Earth for thousands of years, but if we can't survive space travel without a protective suit, how can they? Are some aliens mere shells or clones with an artificial consciousness?

In the spring of 1952, UFO sightings go off the charts. For years, the U.S. government has told the postwar public that UFOs do not exist, but behind the scenes, U.S. Air Force officials are divided.

In 1969, the U.S. government officially announces it will stop investigating UFOs, but declassified documents reveal that multiple government agencies have been hiding important UFO sightings for decades.

Since the early 1960s, we've experimented with how to travel off planet Earth. Many experts believe America has operated a secret Space Force for decades, with ultra high-tech ships designed for missions beyond Earth's orbit.

Since the Jet Age, fighter pilots have been scrambled to intercept UFOs in our skies, but what happens when pilots are sent a Shoot Down Order and can't complete their mission?

For decades, governments around the world have investigated UFO sightings, often times under an umbrella of secrecy. How are these top-secret studies conducted? Who is called upon to analyze the evidence?

Alien abductions are the only types of encounters in which eyewitness testimony can reveal details about the inside of UFOs. Details that can help us understand how aliens live and what they want from the human race.

If aliens have visited Earth, why are they here and what are they truly after? Investigations have revealed the possibility that aliens are interested in experimenting on not only the human body, but the human mind as well.

In order to survive mankind must find a way to navigate the galaxy. Alien encounters have offered a possible glimpse into the secrets of interstellar flight, but how would extraterrestrials know how to navigate the vast regions of space?

Rapid advancements in science and technology have given mankind unprecedented access to distant galaxies that could harbor life. And some scientists believe that to find alien life we need look no further than our own backyard.