Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured. Are footprint casts from Mt. St. Helens proof that a massive, undiscovered primate lives in North America? Have a father and son team captured the most convincing footage of Bigfoot since the famous Patterson-Gimlin film, using a thermal imaging camera? Harris and a collection of top researchers, investigators, academics, and scientists, evaluate the latest and most intriguing sounds, photos and videos, to analyze and pass verdicts on their authenticity.

Did a Chilean family photograph a real UFO flying above the Andes Mountains? Is footage of a tall, dark-colored, hairy creature walking through the woods proof the legendary Ohio Grassman exists? Does a huge, 5,000-year-old horn discovered on a beach in England belong to a prehistoric creature that still lives? Scientists and citizens attempt to decipher the mysterious inscription of a sword found in River Witham, Lincolnshire. Tony Harris and his team of experts examine the clues and make a determination about the validity of what we're seeing.

Did a loyal viewer capture an image of an alien probe? What is the identify of a bizarre creature spotted on a driveway camera? Did the legendary Men in Black call a man and threaten him? How did a family survive a bolt of lightning ripping through a car in a Kansas storm?

A silver orb in the sky, and alleged crash debris may be from a UFO; a 65-year-old-man might have some of the fastest hands in the West; an infamous spy organization's alleged footage of UFOs and aliens.

A photograph of a UFO hovering over Holloman Air Force Base in New Mexico; a cabin built in a supposedly anomalous spot that defies gravity in the Redwood Forests; the origin of frightening howls recorded in Witset, British Columbia.

A strange creature is caught on a security camera in Youngstown, Ohio; a Proof viewer might have filmed the infamous Black Knight satellite; the origin of a sound so loud it could be heard over the entire Equatorial Pacific Ocean.

A fisherman may have captured footage of a giant sea serpent; mysterious blue and green flashing lights, witnessed by hundreds of people, in Lubbock, Texas; a centenarian monk trying to mummify himself.

In an all-UFO special episode, Tony Harris breaks down the latest developments and most compelling photographic evidence in a tumultuous year of UFO revelations.

Reports of a strange, swirling vortex with a brilliant white center in the skies over Oklahoma; a video claimed to be discovered sealed in Vatican archives allegedly shows a real case of demonic possession.

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What is the odd, worm-like object seen in the sky in a video Tweeted by a Proof viewer? Did an ROV find the remains of a massive skeleton 2700 ft below the surface of the Mediterranean? Why does a building seen in the distance appear to be shrinking as a family drive closer and closer to it? What is causing the banging noises, described as thunderous and even unearthly, that jolts the residents of Thessaloniki awake every night? Tony Harris and his team of experts dive into these claims to find the truth.

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Are black and white photos taken in 1951 proof that a woman in St. Petersburg, Florida spontaneously combusted? What is the brain-numbing noise plaguing Brooklyn residents? Did a woman witness something even scarier than a Chinese Spy Balloon being shot down over Billings, Montana? Tony Harris and his team of experts dive into these claims to find the truth.