An exploration of strange and inexplicable mysteries; contributions from scientists, historians and witnesses as they seek to shed light on how the impossible can happen.

The UnXplained

Texts, archaeology and legend contain evidence of past human-extraterrestrial contact.

Ancient Aliens

Maggie and Negan travel into a post-apocalyptic Manhattan long ago cut off from the mainland; the crumbling city is filled with the dead and denizens who have made New York City their own world full of anarchy, danger, beauty and terror.

The Walking Dead: Dead City

The residents of a small town search for a way out when unknown forces keep them from leaving.

From

Experts analyze paranormal videos from around the world, breaking down the footage captured by onlookers and offering insights; eyewitnesses give firsthand accounts of strange phenomena.

Paranormal Caught on Camera

Adventurer Josh Gates, scientist Phil Torres and paranormal researcher Jessica Chobot investigate reports of supernatural encounters, mysterious creatures and extraterrestrial phenomena.

Expedition X

Spacecraft Ark One encounters a catastrophic event on a mission to secure the survival of the human race; the remaining crew must survive with a lack of life-sustaining supplies, loss of leadership, and over a year until they reach the target planet.

The Ark

Dakota Laden, Chelsea Laden and Tanner Wiseman travel across the country in an RV spending nights in the most haunted locations in the United States.

Destination Fear

Jack faces horrifying family history and serial killers from the beyond in an Antipodean paranormal investigation.

Jack Osbourne's Buried Bloodlines

An alien arrives on Earth at a turning point in human evolution and must learn what it means to become human, even as he fights for the survival of his species.

The Man Who Fell to Earth

Reliving Alicia's best moments with a collection of iconic episodes from "Fear the Walking Dead."

Fear the Walking Dead: Best of Alicia

Dalen Spratt, Juwan Mass and Marcus Harvey respond to pleas from families experiencing paranormal activity in their homes; they travel across the country embedding themselves with different families for weekend slumber parties.

Ghost Brothers: Haunted Houseguests

Documentary in which whistleblowers and experts claim to bring viewers face-to-face with extraterrestrial visitors and their message for humanity.

Close Encounters of the Fifth Kind: Contact Has Begun

A paramedic uses his telepathic powers to help solve crimes for the Integrated Investigative Bureau.

The Listener

The continued search for evidence of the existence of Megalodon, a prehistoric shark thought to be long extinct.

Megalodon: The New Evidence

Renowned American medium Chris Fleming and Scotland's Gail Porter lead an expert paranormal team to investigate the chilling crimes, supernatural sightings and terrifying stories across one of the most haunted countries on earth: Scotland.

Haunted Scotland

Celebrities tell stories about coming face to face with unexplained phenomena.

Famously Afraid

Scientists save an astronaut by implanting him with high-tech devices.

The Six Million Dollar Man

Peggy Carter works as a secret agent for the Strategic Scientific Reserve.

Marvel's Agent Carter

A doctor tries to locate, aid and protect supernatural creatures.

Sanctuary

Explores the most noteworthy and notorious predictions for the destruction of humanity and the earth, and examines widely-held beliefs about how the world will end.

How the World Ends

The crew of the USS Discovery explores new worlds and civilizations.

Star Trek: Discovery

Reliving Strand's best moments with a collection of iconic episodes from "Fear the Walking Dead."

Fear the Walking Dead: Best of Strand

A civil war breaks out in America and Manhattan becomes a demilitarized zone.

On November 5, 1975, a logging crew drives home after work when they suddenly encounter a UFO; Travis Walton gets out of the truck to investigate and is hit by lighting from the ship; he disappeared in the forest to never be seen again.

Alien Abduction: Travis Walton

An alarming surge in missing person cases sends vampire hunters to Arizona to investigate if a pack of bloodsucking fiends has emerged from hibernation, but their high-tech hunt uncovers a plan far more nefarious than they could have imagined.

Vampires in America

Victims of attacks by unknown forces tell their stories.

When Ghosts Attack

Medically reconstructed woman uses her superhuman powers to fight crime.

Bionic Woman

Maddie is a teen girl stuck in the afterlife investigating her own mysterious disappearance; she goes on a crime-solving journey as she adjusts to school in the afterlife, but the closer she gets to the truth, the more secrets and lies she discovers.

School Spirits

Stalwart officers from two spacefaring groups -- Starfleet Command and the Bajoran Militia -- defend a 24th-century space station coveted by hostile aliens for its strategic location at the mouth of a wormhole leading to the far reaches of space.

Star Trek: Deep Space Nine

The history and lore of the scariest places on the planet, from gilded theaters to cursed ships manned by skeleton crews.

Most Terrifying Places

A skeptical psychologist joins a Catholic priest-in-training and a blue collar contractor as they investigate the church's backlog of unexplained mysteries.

Evil

Homicide detectives Christian Walker and Deena Pilgrim investigate cases involving superhuman powers, but their efforts are fraught with trouble due in part to Christian's preoccupation with having his own powers ripped away from him.

Powers

The crew of the starship USS Enterprise, commanded by the charismatic Capt. James T. Kirk with half-human/half-Vulcan First Officer Spock, boldly explores outer space and encounters a wide variety of alien life forms in the 23rd century.

Star Trek

Researchers use a data algorithm, scientific analysis and tools to analyze 50 years of Bigfoot sightings, attempting to pinpoint likely encounter locations.

Expedition Bigfoot

In near-future California, high-school senior Aisha learns a dark secret about herself and goes from dreams of graduation to running for her life.

Don't Look Deeper

The crew of a small transport ship experience a cosmic civil war.

Firefly

A team of trappers hunts down legendary beasts in the Appalachian Mountains.

Mountain Monsters: By the Fire

The world's most haunted house is at 1600 Pennsylvania Avenue, where two grieving first ladies may have unwittingly invited evil into their temporary home. This spirit could still be tormenting America's presidents, their families and their advisors.

Demon in the White House

George Takei takes a deep dive into some of the most bizarre and sensational unsolved mysteries in world history.