A doll comes to life at a notoriously haunted hotel; a UFO is spotted flying close to a volcano; a man gains a ghostly bedmate; locals are stumped by strange lights in the Ozarks.

A man encounters a shadow creature in his bedroom; an unidentified light is spotted above Fairbanks, Alaska; a Detroit brewery is visited by an angelic entity.

A man searches for answers after he spots a reptilian creature in Thailand; a baby has a terrifying encounter with a ghost; a war-torn ship yields a haunting message.

A paranormal team get the shock of their lives while investigating an abandoned Illinois prison; a UFO gets dangerously close to two commercial jets; a ghostly local legend shows itself in England.

An Iowa couple accidentally brings home a haunted statue; a real-life boogeyman hides in a bedroom closet; a murdered family gets its revenge from beyond the grave; a Canadian lake monster pops up during a fishing trip.

A ghost hunter is attacked by a poltergeist in an abandoned nursing home; a ferry full of passengers sits in the cross hairs of battling UFOs; a man is possessed by an evil entity during a séance.

An Iowa couple accidentally brings home a haunted statue; a real-life boogeyman hides in a bedroom closet; a murdered family gets its revenge from beyond the grave; a Canadian lake monster pops up during a fishing trip.

A ghost hunter is attacked by a poltergeist in an abandoned nursing home; a ferry full of passengers sits in the cross hairs of battling UFOs; a man is possessed by an evil entity during a séance.

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Amy Bruni and Adam Berry investigate a Connecticut restaurant once used as a makeshift morgue after a flood ravaged the town; psychic medium Chip Coffey is called in to confront a powerful poltergeist haunting the building.

Amy, Adam and Chip investigate the Sterling Hill Mines in Ogdensburg, N.J.; decades of deaths have fostered a dark energy that lurks in underground tunnels.

A deadly explosion threatens to wipe out half of the United States; the tragic and terrifying tale of a heartbroken ghost; a man makes an audacious plan to fight forest fires from above.

A ferocious feline stalks the halls of the U.S. Capitol Building before national tragedies; a gruesome triple murder committed on the high seas; a mammoth mystery in the desert.

Eyewitness accounts suggest that Bigfoot is far more fierce and predatory than previously believed; new evidence reveals the Yeti may have an otherworldly origin and may also reside in America.

The team investigates recent encounters with a monstrous apex predator in the wilderness of British Columbia; using never-before-seen clues from Ivan Sanderson's lost archive, they uncover new evidence that may finally distinguish fact from fiction.

A mysterious apex predator is stalking orcas and boats off the coast of Kodiak, AK; sea monster sightings, first studied by Sanderson before his death, have spiked in that area recently.

The team investigates a stranger-than-fiction murder mystery involving the Wildman of Minnesota; known as the Ice Man, its body became a sideshow attraction that Sanderson examined himself before it mysteriously disappeared.

The team makes a discovery while investigating sightings of a large bird of prey terrorizing Chestnut Ridge, Pennsylvania; Sanderson believes it to be the mysterious thunderbird, a razor-clawed predator documented in Native folklore.

The team investigates a series of livestock mutilations in the Great Smoky Mountains that some link to the infamous chupacabra; using evidence journals from Sanderson's archive plus new clues, the team attempts to confront the killer canine.

When Ozarks locals report frightening encounters with a mysterious, dragon-like beast, the team conducts their most ambitious hunt yet.

Jeremy Wade explores a shipwreck that may contain stolen Nazi treasure, the priceless lost furnishings of the 18th century Amber Room; astonishing footage captures the exact moment when freight ship MV Arvin split in two and sank in the Black Sea.

Jeremy Wade explores the hidden and dark secrets behind a 150-year-old shipwreck off the coast of Sisal, Mexico, revealing an unknown and troubling maritime past. Also, a mysterious boiling river hidden deep in the heart of the Amazon is uncovered.

Jeremy Wade takes a fresh look at the Battle of Actium; Jeremy investigates what could be the first recorded case of a whale rescuing a human.

Jeremy Wade follows investigators as they dive the wreck of the ferry MS Estonia; the case of America's notorious skyjacker DB Cooper takes an intriguing underwater twist.

The Roman Empire fell in the year 476, yet questions linger; did it truly fall or does it continue as the Byzantine Empire? What caused its demise? The debate remains controversial even among modern historians.

Jeremy Wade examines new evidence that could finally reveal what happened to aviator Amelia Earhart; Jeremy investigates a strange anchor found in the Mediterranean Sea.

Jeremy Wade takes a fresh look at the Battle of Actium; Jeremy investigates what could be the first recorded case of a whale rescuing a human.

Jeremy Wade follows investigators as they dive the wreck of the ferry MS Estonia; the case of America's notorious skyjacker DB Cooper takes an intriguing underwater twist.

The Roman Empire fell in the year 476, yet questions linger; did it truly fall or does it continue as the Byzantine Empire? What caused its demise? The debate remains controversial even among modern historians.

Jeremy Wade examines new evidence that could finally reveal what happened to aviator Amelia Earhart; Jeremy investigates a strange anchor found in the Mediterranean Sea.

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Amy and Adam investigate strange symbols etched on the walls of an Indiana asylum; Chip Coffey joins the case to help them find out if the symbols are responsible for an up-tick in paranormal activity on the property.

Amy, Adam and Chip investigate the infamous Harrisville Farmhouse; they call upon the entire Perron family to help expose the truth behind the horrific haunting.

An ape-like beast that roams the desert; a jazz-loving serial killer's reign of terror; a doomed ghost ship found floating in the Arctic Ocean.

A ghostly siren who once haunted the dance halls of Chicago; a legendary leviathan that terrorized sailors in Maine's coastal waters; a nightclub inferno that claimed the lives of nearly 500 people.

In Kentucky, Steve and Amy investigate paranormal activity tormenting a recently separated woman and her two children; Amy's late-night walk leads her to an inter-dimensional portal filled with malicious aliens.

In Briceville, Tenn., Steve and Amy investigate a case involving a woman who fears for the safety of her children as vengeful spirits torment them; during her late-night walk, Amy discovers a vindictive spirit with a hatred for children.

In Berthoud, Colo., a woman calls on Steve and Amy to investigate claims of vicious paranormal activity at her home; during her after-hours walk on the property, Amy encounters a demon set on tormenting the living and a malevolent shadow person.

Steve and Amy travel to West Virginia to meet a woman who fears the paranormal activity tormenting her family was brought on by the birth of her youngest son; their investigation leads to the discovery of a vortex where entities come and go.

In Waxahachie, Texas, Steve and Amy investigate a widow's claim that her husband was killed by a paranormal entity and that her daughter is now being targeted; during her walk, Amy finds an evil mass and mirrors acting as a pathway for the dead.

Steve and Amy travel to Waterford, Conn., to investigate a recently separated woman's claims that her family is under attack by a paranormal entity; Amy discovers that the key to what's haunting the living may not necessarily reside with the dead.

In El Cajon, Calif., Steve and Amy investigate paranormal activity bedeviling a young couple and their children; while Steve identifies an infamous serial killer who lived in the area, Amy goes toe-to-toe with a vengeful spirit.

Steve and Amy investigate an abandoned amusement park in Lake Shawnee, W.V.; while Steve uncovers Native American attacks and multiple drownings, Amy uncovers a vengeful group of ghosts who will stop at nothing to get their land back.

Steve and Amy travel to a home in Murrieta, Calif., where a woman worries that her husband's involvement with witchcraft have led to the paranormal activity that's tearing her family apart.

Steve and Amy travel to Grant Township, Mich., where a desperate couple claims paranormal activity is trying to kill them; during the investigation, Amy encounters a malicious dead man and an entity capable of physically harming the living.

Violent paranormal activity at a family home in the small town of Kearney, Mo.; Steve tracks down the history of a ruthless Civil War-era gang leader while Amy encounters several deceased individuals, including a trapped male spirit.

Investigating paranormal disturbances keeping customers awake at a historic bed and breakfast in Brumley, Mo.; a surprising past involving medicine and religion, including a horrific murder-suicide; Amy encounters several translucent entities.

Steve DiSchiavi and Amy Allan travel to Chicago to investigate paranormal activity terrorizing the employees and customers at funeral home turned tattoo parlor; the mysterious death of the original owner's wife; two dangerous entities.

Steve and Amy travel to Dumfries, Va., to investigate activity that's tormenting volunteers and visitors at a historic museum; Amy encounters a female spirit wishing to harm the living.

Violent paranormal activity at a family home in the small town of Kearney, Mo.; Steve tracks down the history of a ruthless Civil War-era gang leader while Amy encounters several deceased individuals, including a trapped male spirit.

Investigating paranormal disturbances keeping customers awake at a historic bed and breakfast in Brumley, Mo.; a surprising past involving medicine and religion, including a horrific murder-suicide; Amy encounters several translucent entities.

Steve DiSchiavi and Amy Allan travel to Chicago to investigate paranormal activity terrorizing the employees and customers at funeral home turned tattoo parlor; the mysterious death of the original owner's wife; two dangerous entities.

Steve and Amy travel to Dumfries, Va., to investigate activity that's tormenting volunteers and visitors at a historic museum; Amy encounters a female spirit wishing to harm the living.

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An entity terrorizes a Texas deputy and his family in their home; the guys uncover a brutal crime against a child that may be the source of the haunting.

Ignoring the ghost stories about their Washington home, family members begin to have ghostly encounters; now, they call on the Ghost Brothers for help.

A malevolent entity torments a woman and her grandson; fearing her North Carolina home may be a hub for spirits, she calls on the Ghost Brothers to find out what is causing the frightening paranormal activity.

Intense paranormal activity is wreaking havoc on the lives of a Massachusetts family; fearing the entities are honing in on their young daughter, the couple calls on the Ghost Brothers for help.

A Tennessee couple is forced to move back into a haunted house for financial reasons; they call on the Ghost Brothers to rid the home of the aggressive shadow figures they fear will go after their young daughter.

Vicious spirits terrorize a disabled military veteran and his family in their historic Michigan mansion; the family calls on the Ghost Brothers to find out why their dream home is a paranormal battleground and whether it can be made safe again.

The owner of a bed and breakfast fears paranormal activity on the property may be having a negative impact on her family and guests; the "Ghost Brothers" head to New Hampshire to investigate the cause of the haunting.

A Minnesota home becomes a hotbed of paranormal activity; the woman is afraid to be left alone with her children and calls on the Ghost Brothers to investigate a dark presence lurking in the basement of their house.

A malevolent spirit terrorizes the staff at the Palace Saloon in Prescott, Arizona; Jay is attacked in the saloon's basement where the spirit resides.

An evil home in Reseda, California affects all who enter it; the investigation turns into an emotional nightmare.

Investigating the former home of an elderly serial killer, Dorothea Puente; undiscovered victims and unseen forces are reckoned with.

Traveling deep into the Phoenix Gold Mine where a heinous murder haunts the entire crew; a malicious spirit known as Tommyknocker.

Properties once owned by John Mackay are investigated; an unseen force pushes Jay down the stairs; a spirit causes a light bulb to explode.

Investigating the historic Metlen in Montana; Zak learns of possession and suicide; Aaron's horrifying results.

Zak's team heads to Murfreesboro, Tennessee, to investigate a dark, hopeless presence that has invaded a woman's childhood home; she hopes to take care of her ailing mother in the house but only if the property can be cleansed of its bad energy.

Zak dispatches his team to assist an elderly gentleman claiming to be assaulted by a dark force in his rural Oklahoma home; the guys are shocked when they uncover a connection between the man's home and the desecration of an ancient burial mound.

Zak sends the team to New York, where the owner of a historic home claims that a dark presence is harassing her boyfriend; the case takes a disturbing turn when she reveals a strong attachment to the spirits that reside there.

Zak sends the crew to investigate claims of extreme paranormal activity on a farm in Northern California; disembodied voices, strange shadows and ghostly attacks are making the owner uneasy in her own home, and she wants answers fast.

Zak's team heads to Murfreesboro, Tennessee, to investigate a dark, hopeless presence that has invaded a woman's childhood home; she hopes to take care of her ailing mother in the house but only if the property can be cleansed of its bad energy.

Zak dispatches his team to assist an elderly gentleman claiming to be assaulted by a dark force in his rural Oklahoma home; the guys are shocked when they uncover a connection between the man's home and the desecration of an ancient burial mound.

Zak sends the team to New York, where the owner of a historic home claims that a dark presence is harassing her boyfriend; the case takes a disturbing turn when she reveals a strong attachment to the spirits that reside there.

Zak sends the crew to investigate claims of extreme paranormal activity on a farm in Northern California; disembodied voices, strange shadows and ghostly attacks are making the owner uneasy in her own home, and she wants answers fast.

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A top-secret government facility beneath the Alaskan wilderness may be hiding an extraterrestrial pyramid; strange forces within the Alaska Triangle are making wildlife more aggressive toward humans.

A Sasquatch colony terrorizes the residents of remote Prince of Wales Island; decades of UFO sightings on Kodiak Island lead many to believe that aliens are working with the US military.

A sonar recording may prove that a prehistoric monster stalks the seas surrounding Kodiak Island; researchers investigate why thousands of airplanes have disappeared without a trace in the Alaska Triangle.

A ghost hunter seeks out spirits from the gold rush in Skagway, Alaska; tiny demonic creatures may be behind thousands of strange disappearances in the Alaska Triangle.

Dark forces disrupt a paranormal investigation at an old fairground near Fairbanks, Alaska; hundreds of Alaskans go missing every year.

A team of ghost hunters reaches out to the dead in an abandoned gold mine; numerous sightings and strange disappearances suggest a fearsome yeti inhabits the frozen landscape of the Alaskan mountains.

The Alaskan skies are filled with unexplainable lights and objects, but evidence suggests these extraterrestrial visitors are landing; prehistoric monsters may be alive and well in the Alaska Triangle.

Hostile Sasquatches leave the wilderness behind for Alaska's major cities; a paranormal investigator searches for evidence of ghosts at an infamous haunted hotel.

An underwater alien base may be located off the coast of a quiet Alaskan town; a cannibalistic creature preys upon those brave enough to venture into the Alaska Triangle.

Ominous sounds from the skies could be a sign of the impending apocalypse; drivers are spooked by phantom headlights and ghostly hitchhikers along Alaska's haunted highways.

A couple learns they're sharing their hotel room with a ghostly guest in Arkansas; a strange formation floats over a Philadelphia neighborhood; a monstrous creature washes up on a beach in the Philippines.

Friends in Utah track down a Bigfoot spotted in the mountains; a total skeptic is attacked by a spirit at a haunted fort in England; ghostly passengers appear in a Hong Kong airport.

A Pennsylvania family is terrorized by a shadowy entity; a brazen Bigfoot appears in front of a large group of shocked witnesses in Oregon; two UFOs put on a show in the skies above Bath, England.

A ghost pranks the staff at a Scottish grocery store; a UFO flies across an airport runway in Puerto Rico; a child-snatching beast is spotted in Bolivia.

A river raft guide spots an infamous cryptid along the Colorado River; a UK man taking out his trash appears to pick up a ghostly hitchhiker; a Las Vegas couple manifests a bright light in the sky while stargazing in their backyard.

An otherworldly figure walks across a Pennsylvania woman's front lawn; a haunted doll gets physical with its visitors in England; animals are frozen in time around the world.

A Texas man sees a light anomaly while camping; a glowing orb of energy emerges from a streetlight in Arkansas; communicating with the dead in Kansas.

An elk hunter witnesses two Bigfoots in Canada; a man in Maine sees a shadowy figure while driving down a dark road late at night; poltergeist activity in Malaysia.

A river raft guide spots an infamous cryptid along the Colorado River; a UK man taking out his trash appears to pick up a ghostly hitchhiker; a Las Vegas couple manifests a bright light in the sky while stargazing in their backyard.

An otherworldly figure walks across a Pennsylvania woman's front lawn; a haunted doll gets physical with its visitors in England; animals are frozen in time around the world.

A Texas man sees a light anomaly while camping; a glowing orb of energy emerges from a streetlight in Arkansas; communicating with the dead in Kansas.

An elk hunter witnesses two Bigfoots in Canada; a man in Maine sees a shadowy figure while driving down a dark road late at night; poltergeist activity in Malaysia.

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An action figure connected to a North Korean kidnapping; a gold ring as a symbol of freedom; a 19th-century board game.

A strange stone tablet; a model plane connected to a hijacking; a revolver that belonged to the first American woman to lead an armed expedition into war.

The mysterious death of a Hollywood star; Scotland's Loch Ness Monster; a tone-deaf diva who took stage at Carnegie Hall.

A painting in the center of a scandal; a 19th century medallion connected to a young girl with magnetic powers; a blunderbuss that recalls an infamous pirate.

A fish species that was part of an unusual storm, the kidnapping of an oil baron's grandson and an underwater oxygen tank that was the early version of SCUBA.

The origins of a mythical unicorn at a popular circus; the case of a missing U.S. politician; an attack by one of the most deadly creatures on the planet.

A Noel Prize winner's risky experiment in the face of Nazis; a creative sting operation; a lifesaving airlift out of Vietnam.

Icy stories behind an eccentric expedition to the North Pole, a frozen feat of nautical engineering and the cosmic conundrum surrounding an incredible icicle.

A controversial film reel that sparked jealously; a set of brass knuckles; a 19th century lantern connected to a mysterious tale.

A scorecard connected to a legendary figure skating rivalry; an underwater microphone; a skill of an animal behind a decades old curse.

One of the most challenging bombing cases in FBI history, a mythical beast stalking a small town and an artful scientist who accidentally uncovered a revolutionary medicine.

A species of Asian cobra invade a small town in Missouri; a carriage that was the site of a bizarre murder; a wealthy daredevil swims with sharks to prove that they are harmless.

Don Wildman unearths extraordinary artifacts as he looks for answers to history's greatest mysteries.

Don Wildman unearths extraordinary artifacts as he looks for answers to history's greatest mysteries.

Don Wildman unearths extraordinary artifacts as he looks for answers to history's greatest mysteries.

Don Wildman unearths extraordinary artifacts as he looks for answers to history's greatest mysteries.

Don Wildman unearths extraordinary artifacts as he looks for answers to history's greatest mysteries.

The breakthrough 7-foot tree that opens in seconds, fully lit and decorated! You have to see it to believe it! The new generation of Christmas trees is finally here! Stores flat after the holidays. No stress. No mess. Just pure Christmas magic!

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An old Masonic temple shrouded in mystery and local lore; a hair-raising paranormal investigation with psychic medium Chip Coffey leads to a daunting reality.

Amy Bruni and Adam Berry visit a home plagued by paranormal activity; the discovery of an old shoe might have triggered the haunting, but the homeowner can't be sure; they, along with psychic medium Chip Coffey, unseal the attic to find answers.

Don Wildman investigates Christopher Columbus' encounter with a fabled sea creature, a death-defying mission atop the nation's tallest building and the abduction of a jazz musician by a notorious gangster.

Don Wildman investigates one of New York City's bravest firefighters, a shipwreck rumored to contain millions of dollars worth of gold and a storm of biblical proportions.

Security guards spend a terrifying night at a haunted church in the middle of the woods in Texas; two monster hunters soon become the hunted when they venture into the North Carolina woods to track down a vicious dogman.

Shapeshifting shadow creatures terrorize the residents of a mobile home park in Texas; an aggressive Sasquatch ambushes a Missouri farmhouse.

A young man gets more than he bargained for when he asks a mysterious woman out on a date in Louisiana; a couple's California dreams turn into a nightmare after they stumble across a satanic site in the mountains.

Siblings accidentally lure a skinwalker onto their rural Illinois property; an ex-police officer is hospitalized after he and his son investigate an abandoned lake house in Texas.

A Texas man's life is forever changed when a UFO chases him and his father down on a dark rural road; a teenager is stalked by a pale humanoid creature in the backwoods of West Virginia.

A North Carolina teen sneaks out of her home to go on a double date only to find herself attacked by an aggressive dogman; years after a life-changing encounter with Bigfoot, a man finds himself face-to-face again with the creature in Arkansas.

A birthday celebration in Ohio turns terrifying when Sasquatches surround a remote cabin; a man struggles to overcome his fear after an unknown creature approaches his tent in the dead of night in Michigan's Upper Peninsula.

A father and son stumble across Bigfoot while camping deep in the woods of Michigan; a young woman is stalked by a mysterious presence on a haunted bridge in Georgia.

A teenage boy and his brothers are terrorized by a large humanoid creature trying to break into their home in rural Oklahoma; a trio of ghost hunters encounters a ghostly figure on a remote island in Michigan.

A Georgia man fights to save his home from a pack of destructive Bigfoots; a family is terrified when a werewolf crashes their camping trip in the Upper Peninsula of Michigan.

A woman and her husband buy a famous historical mansion and inherit a spirit along with it.

When a seven-year-old girl mysteriously disappears in by a remote pond in North Carolina, the life of one of her classmates is forever altered by her revenge.

Uncovering the identity of rage-filled things that go bump in the night; going ghost hunting in a community theatre in a town with a violent past; visiting a spooky honky-tonk; chasing a phantom that's trying to eject a historical home's new owner.

Getting close to lost souls that have been distorted by their trauma; braving the paranormal energy left behind in an abandoned sanitarium; exploring a strip club filled with restless spirits; confronting a couple's shadowy housemate.

A woman and her husband buy a famous historical mansion and inherit a spirit along with it.

When a seven-year-old girl mysteriously disappears in by a remote pond in North Carolina, the life of one of her classmates is forever altered by her revenge.

Uncovering the identity of rage-filled things that go bump in the night; going ghost hunting in a community theatre in a town with a violent past; visiting a spooky honky-tonk; chasing a phantom that's trying to eject a historical home's new owner.

Getting close to lost souls that have been distorted by their trauma; braving the paranormal energy left behind in an abandoned sanitarium; exploring a strip club filled with restless spirits; confronting a couple's shadowy housemate.

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Amy, Adam and Chip investigate escalating paranormal problems at a home undergoing renovations; the entities within are fiercely protective of the property and lash out when the team attempts to communicate.

Amy Bruni, Adam Berry, and Chip Coffey investigate an 1850s manor where an eyeless entity looms over sleeping guests; Amy and Adam attempt an off-the-cuff experiment that bends paranormal reality so much they shock themselves.

Don Wildman investigates a terrifying discovery on the surface of the moon, a White House conspiracy and the brave woman who cooked up a stunning military victory.

A clever con onboard the RMS Titanic; a murder mystery solved by the real-life Sherlock Holmes; the reinvention of an iconic Olympian.

A famous monster washes up on a New York beach; parents catch ghosts haunting nurseries on baby monitors; a UFO saves a Russian town.

A poltergeist haunts an English antique store; a man and his son encounter bigfoot in Washington; a strange UFO is spotted over Inner Mongolia.

A pyramid-shaped UFO is spotted over the Pentagon; a man and his children are spooked by a ghost on a Rhode Island playground; a security camera captures strange creatures stalking a California neighborhood.

A paranormal investigator is attacked by an entity in an abandoned asylum in Connecticut; a driver witnesses a strange UFO over a hotel in North Carolina; an Oregon marijuana dispensary is haunted by ghosts of the past.

A couple encounters a sea monster while boating off the Florida coast; a man's house becomes haunted after he opens a cursed box; a god-like figure walks across clouds in the sky in Alabama.

A home security camera captures a dog's scary encounter with a ghost; a strange creature is spotted deep within a cave in the Alps; people all over the globe witness UFOs during the daytime.

Friends test a local legend about a haunted bridge; a UFO is spotted from a plane window over California; a horrifying creature from the darkest corners of the internet is found in Oregon.

A ghost appears on the Gettysburg battlefield; a sea monster surfaces in Ireland; fleets of UFOs are spotted over the skies of Philadelphia and The Hague.

An Oregon man captures some of the best bigfoot footage ever; UFOs cluster over a Texas town; a Wales resident faces an especially active poltergeist.

Ghostly patrons haunt pubs throughout the United Kingdom; a shadow creature stalks a police officer on an empty plane in Mexico City; a sea monster is spotted by multiple witnesses on the Thames.

Mysterious lights hover over Stonehenge on the eve of the summer solstice; an urban explorer hears ghostly screams in an abandoned mansion; a Florida man finds grisly proof of an extraterrestrial attack; a dog plays catch with a ghost.

A werewolf suddenly sprints across a backyard; a vengeful spirit torments a paranormal investigator in an abandoned garage; a feline friend returns from the grave to visit its owner; a tenacious teddy bear terrorizes twins in Texas.

Mysterious lights hover over Stonehenge on the eve of the summer solstice; an urban explorer hears ghostly screams in an abandoned mansion; a Florida man finds grisly proof of an extraterrestrial attack; a dog plays catch with a ghost.

A werewolf suddenly sprints across a backyard; a vengeful spirit torments a paranormal investigator in an abandoned garage; a feline friend returns from the grave to visit its owner; a tenacious teddy bear terrorizes twins in Texas.

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The real story behind the notorious prison break on Alcatraz Island in San Francisco; new evidence on whether the escapees lived or died.

Don Wildman tracks the origins of the mob in the United States, meeting individuals who knew some of the mob's most infamous members while delving into some of its greatest unsolved mysteries.

A bomber threatens railroads in the northwest; a chimp raised to be human; a mysterious body in Denmark is much older than it appears.

The mysterious bacteria that imperiled the NASA space program; the decrepit remains of a mythical beast; a hidden bug that painted the world in a whole new color.

Experts believe the ghost and UFO sightings, mysterious disappearances and a prehistoric pterodactyl are caused by a rift in the fabric of time in Yosemite National Park.

Visitors to Great Sand Dunes National Park have been seeing strange lights there since the 16th century, but in recent decades, animal mutilations and other bizarre incidents may be evidence the area is a gateway for an alien civilization.

The ancient Anasazi built Chaco Canyon National Historical Park, but now the area is stalked by shape-shifting creatures and visited by time travelers who left behind a mysterious artifact.

Lassen Volcanic National Park is the center of a series of bizarre encounters with sentient reptiles known as reptoids; experts believe these beings are working with extraterrestrials to take over the human race using mind-controlled human agents.

Mysterious lights, mechanical sounds from deep within the Earth and the disappearance of dozens of aircraft over the Great Smoky Mountains National Park could be evidence of a powerful secret society with an underground base in the area.

An alien abduction and strange encounters with a humanoid monster in Apache-Sitgreaves National Forests point to a longtime extraterrestrial presence in the area.

Hawaii's Volcanoes National Park is haunted by black magic, mysterious deaths and fireballs; some believe these mystifying happenings are the work of Pele, the fire goddess.

California's Mount Shasta National Forest has inspired stories about super humans, which may be linked to Karuk Indian legends as well as unexplained disappearances and a mysterious death.

A series of disturbing deaths and disappearances, plus the unearthing of artifacts from an ancient race of people in Death Valley National Park leads to the discovery of malevolent forces that are believed to inhabit the park's secret underworld.

A tragic plane crash, shocking murders, and mysterious python infestation suggest a dark, evil power at the heart of Florida's Everglades National Park.

Sightings of the fabled chupacabra in Puerto Rico's El Yunque National Forest may be linked to UFO sightings and a secret U.S. government research facility.

A secret underground Nazi base may be the reason for UFO sightings in Montana's Glacier National Park, which may have been Adolf Hitler's final hideout.

El Dorado, the legendary city of gold, captivated Europeans in the 16th and 17th centuries, sparking endless quests for hidden treasures; fueled by greed, these expeditions led to the loss of countless lives.

The Roman Empire fell in the year 476, yet questions linger; did it truly fall or does it continue as the Byzantine Empire? What caused its demise? The debate remains controversial even among modern historians.

Mentioned twelve times in the canonical Gospels, Mary Magdalene remains one of the Bible's most mysterious and controversial figures. Despite her prominence, little is known about her, and depictions of her have varied widely.

The mystery of Noah's Ark, believed to rest in the snow-covered Ararat Mountains, has fascinated explorers for years. Two separate expeditions claim to have found it in different locations, sparking debates on whether the story is myth or reality.

In 1532, Spanish conquistadors encounter the advanced Inca Empire; despite their sophisticated infrastructure, the Inca falls within decades; the story of how a powerful empire is overtaken by a small group of conquistadors remains mysterious.

Tutankhamun, Egypt's teenage pharaoh, leaves an enduring legacy in the 10 short years he ruled; given questions surrounding his untimely death, Tutankhamun remains one of history's enigmas.

Rameses II, Egypt's "ruler of rulers," reigned for over 60 years, leading Egypt into a golden age. Despite his fame, mysteries linger about his wife Nefertari and the truth of his death.

The ten plagues of Egypt are supposedly sent by God to convince Pharaoh to free the Israelites; some scientists link these events to a volcanic eruption or climate change; could these be natural occurrences or are they divine warnings?

In 1532, Spanish conquistadors encounter the advanced Inca Empire; despite their sophisticated infrastructure, the Inca falls within decades; the story of how a powerful empire is overtaken by a small group of conquistadors remains mysterious.

Tutankhamun, Egypt's teenage pharaoh, leaves an enduring legacy in the 10 short years he ruled; given questions surrounding his untimely death, Tutankhamun remains one of history's enigmas.

Rameses II, Egypt's "ruler of rulers," reigned for over 60 years, leading Egypt into a golden age. Despite his fame, mysteries linger about his wife Nefertari and the truth of his death.

The ten plagues of Egypt are supposedly sent by God to convince Pharaoh to free the Israelites; some scientists link these events to a volcanic eruption or climate change; could these be natural occurrences or are they divine warnings?

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Amy, Adam and Chip investigate a century-old theater haunted by a menacing shadow figure; employees worry the uninvited guest may have come from a nearby alley rumored to be the site of many murders.

The caretaker of a defunct insane asylum calls on Amy, Adam and Chip for help after recent renovations awaken a ghastly presence that stirs up unrest among the building's resident spirits.

The death-defying tale of a brave baker; the shocking secret behind a sinister psychic; the world's most dangerous swim.

A mysterious medium conjures a ghost; a terrifying sea monster lurks in one of the Great Lakes; the strange tale of an audacious stowaway.

Investigating claims of vicious paranormal activity affecting a family who fears for the safety of their sick father; a fanatical preacher who led an armed revolt against his own church; Amy encounters a twisted entity.

Investigating a shattered family's claim that paranormal activity led to the premature death of their 41-year-old son; a shocking past filled with slavery and murder; a dead child capable of inflicting physical pain on the living.

A frightened mother calls on Steve and Amy to investigate claims of malicious paranormal activity directed at her children and elderly mother in Olympia, Washington.

Paranormal activity threatens the lives of a cancer survivor, her two children and her older sister in Applegate, Calif.

Steve DiSchiavi and Amy Allan travel to Louisville, Ky., to investigate paranormal violence threatening the lives of a grieving elderly woman and her daughter; Amy encounters the spirit of an angry man with a deadly mission.

Paranormal activity terrifies two Army veterans who fear the forces inside their home could kill them and their family; a double homicide with ties to the property; a serial-killing widow who targets the family as her next victims.

Steve DiSchiavi and Amy Allan travel to Layton, UT, where a grandfather fears for the life and safety of his grandson; a psychotic dead man attempting to possess the grandson as well as a portal inside his bedroom.

Steve DiSchiavi and Amy Allan investigate paranormal activity threatening the lives of a Ripley, WV, father and his family; a powerful demon terrorizes the family, along with a psychic vampire who threatens to suck the life force from everyone.

A mother of two believes paranormal activity is responsible for the disintegration of her marriage and physical attacks on her children.