Experts and eyewitnesses try to unlock the mystery of the Alaska Triangle, a remote area infamous for alien abductions, Bigfoot sightings and paranormal phenomena.

Could there be life beyond our planet? Extraordinary NASA footage and ground-breaking interviews with astronauts and scientists investigate potential sightings of UFOs.

Could there be life beyond our planet? Extraordinary NASA footage and ground-breaking interviews with astronauts and scientists investigate potential sightings of UFOs.

Investigators, scientists and experts use cutting-edge technology to decode the unexplainable and try to solve the most shocking and infamous disappearances in history.

Could there be life beyond our planet? Extraordinary NASA footage and ground-breaking interviews with astronauts and scientists investigate potential sightings of UFOs.

A team of outdoorsmen is taking on the challenge of exploring the Alaska Triangle to uncover proof of the cryptic creatures thought to be living there.

Experts and eyewitnesses try to unlock the mystery of the Alaska Triangle, a remote area infamous for alien abductions, Bigfoot sightings and paranormal phenomena.

Experts and eyewitnesses try to unlock the mystery of the Alaska Triangle, a remote area infamous for alien abductions, Bigfoot sightings and paranormal phenomena.

Could there be life beyond our planet? Extraordinary NASA footage and ground-breaking interviews with astronauts and scientists investigate potential sightings of UFOs.

Could there be life beyond our planet? Extraordinary NASA footage and ground-breaking interviews with astronauts and scientists investigate potential sightings of UFOs.

Investigators, scientists and experts use cutting-edge technology to decode the unexplainable and try to solve the most shocking and infamous disappearances in history.

Could there be life beyond our planet? Extraordinary NASA footage and ground-breaking interviews with astronauts and scientists investigate potential sightings of UFOs.

A team of outdoorsmen is taking on the challenge of exploring the Alaska Triangle to uncover proof of the cryptic creatures thought to be living there.

Paranormal explorer Dakota Laden takes his sister and best friend on a cross-country road trip to face their fears at the most haunted locations in America.

Nick Groff and Katrina Weidman spend 72 hours confined to the most haunted locations in the United Kingdom in search of groundbreaking evidence of the paranormal.

Nick Groff and Katrina Weidman spend 72 hours confined to the most haunted locations in the United Kingdom in search of groundbreaking evidence of the paranormal.

Colton is fishing on a lake when something in the woods catches his eye. Is he being stalked by a pale humanoid creature?

The series features the Tennessee Wraith Chasers, a group of professional paranormal investigators that are known for trying to "trap ghosts" during their investigations.

Nick Groff and Katrina Weidman spend 72 hours confined to the most haunted locations in the United Kingdom in search of groundbreaking evidence of the paranormal.

Don Wildman reveals the shocking truth behind an insect-like monster and the tale of the vengeful spirit that haunted the infamous mobster Al Capone.

On the outskirts of Anaconda, Mont., sits Gunslinger Gulch -- a sprawling ghost town and guest ranch made up of various historic abandoned buildings salvaged from across the state

Colton is fishing on a lake when something in the woods catches his eye. Is he being stalked by a pale humanoid creature?

A team of outdoorsmen is taking on the challenge of exploring the Alaska Triangle to uncover proof of the cryptic creatures thought to be living there.