It's Christmas at Button House, and Mike is determined to make it perfect for his family; Alison is determined to deliver the best Christmas ever for the living and the dead, although the latter aren't filled with festive cheer.

Examining the evil acts that Jennifer Sybert, a hairdresser in Florida, tried to keep hidden from her colleague, top stylist Joleen Cummings; an entanglement with Joleen's ex blows the lid off Jennifer's criminal past, and leads to a ghastly slaying.

Revealing the truth behind the planet's ancient legends; touring an island covered in polar bears, twin craters in Greece, peeking at a supervolcano hidden under Yellowstone Park and examining an ocean formation that's eerily similar to Atlantis.

Walking among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint and a pentagram etched into a remote peninsula in Kazakhstan.

Traipsing along ancient pathways criss-crossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

The Perry-Mansfield Performing Arts Camp deep in northern Colorado forestland is plagued by reports of unsettling paranormal encounters; in the first professional investigation of the site, Grant sends the team ahead to begin without him.

A nurse aide experiences frightening paranormal events in a large nursing home; a psychiatric technician is intrigued by his ability to communicate with the ghosts in the facility.

When an athletic and popular college student is violently murdered in her apartment, police track down several surprising suspects, including one with a disturbing obsession, before crucial evidence unmasks a dangerous predator no one saw coming.

Follow authorities as they hunt for an axe-wielding suspect in the countryside after a savage attack on an ex-partner; join the chase to bring this culprit to justice; then watch detectives try to build a strong case as the clock ticks.

A historical building in Louisiana with a dark history; unsolved murder, vengeful ghosts and things that go bump in the night.

A fun-loving 59-year-old man is found shot to death in his home and his beloved jewelry collection has been stolen, leading detectives to a long list of suspects and a killer harboring a dark secret.

A man gravely regrets unleashing a demonic entity from a sealed box; a pub seems to have a resident ghost; a pastor is on a mission to exorcise as many demons as possible.

The Perry-Mansfield Performing Arts Camp deep in northern Colorado forestland is plagued by reports of unsettling paranormal encounters; in the first professional investigation of the site, Grant sends the team ahead to begin without him.

Suspicion builds as the DaVita dialysis center in Texas experiences a huge increase in code blues, with many patients succumbing to their injuries.

A woman vanishes during her nightly walk in 2018; the last time she's seen alive is by an ATM security camera that could hold the key to solving her disappearance.

A paranormal investigator explores an ancient inn's haunted past marked by witch trials; a couple is forced to relive a hotel's shocking century-old nightmare; a Yuletide getaway turns to terror with the visit of a ghost scarred by traumatic events.

In Grimsby, a vicious mass street brawl causes mayhem and leaves innocent bystanders with serious injuries; it's a desperate race against time as detectives are tipped off that one of the key suspects is trying to flee the UK to Romania.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

A look at what could cause once-thriving groups of people to just abandon their great cities, never to return; modern scientific knowledge may be able to help answer the unsolved questions surrounding these lost civilizations.

Triangle shaped hovering objects are seen by thousands of people and investigated by scientists and government officials, yet they could never be explained; the sightings occurred in a more than two year wave over Belgium, beginning in late 1989.

Follow authorities as they hunt for an axe-wielding suspect in the countryside after a savage attack on an ex-partner; join the chase to bring this culprit to justice; then watch detectives try to build a strong case as the clock ticks.

A historical building in Louisiana with a dark history; unsolved murder, vengeful ghosts and things that go bump in the night.

A woman vanishes during her nightly walk in 2018; the last time she's seen alive is by an ATM security camera that could hold the key to solving her disappearance.

A baby monitor picks up a ghostly figure walking next to a child's bed. A speeding UFO infiltrates an air show. A young woman ushers in the new year with an undeniable sign from her late father.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

In Grimsby, a vicious mass street brawl causes mayhem and leaves innocent bystanders with serious injuries; it's a desperate race against time as detectives are tipped off that one of the key suspects is trying to flee the UK to Romania.

After a Texas mother is found murdered in an office bathroom, her husband admits a disturbing past while police chase down a serial killer; the case goes cold until an oversight leads to a surprise suspect and an FBI manhunt south of the border.

The double life of Ashlie Stapp led to feed her addiction; she kept her US Marine boyfriend in the dark while manipulating ham radio operator Henry Stange into giving her painkillers, with fatal results for this love triangle.

Examining the evil acts that Jennifer Sybert, a hairdresser in Florida, tried to keep hidden from her colleague, top stylist Joleen Cummings; an entanglement with Joleen's ex blows the lid off Jennifer's criminal past, and leads to a ghastly slaying.

Stake out actor Claire Sweeney's riverside apartment, where a presence walks the hallways; figuring out who this wandering soul could be and meeting another sinister spirit that makes Ian's psychic senses go haywire.

A baby monitor picks up a ghostly figure walking next to a child's bed. A speeding UFO infiltrates an air show. A young woman ushers in the new year with an undeniable sign from her late father.

A look at what could cause once-thriving groups of people to just abandon their great cities, never to return; modern scientific knowledge may be able to help answer the unsolved questions surrounding these lost civilizations.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

Stake out actor Claire Sweeney's riverside apartment, where a presence walks the hallways; figuring out who this wandering soul could be and meeting another sinister spirit that makes Ian's psychic senses go haywire.

In Grimsby, a vicious mass street brawl causes mayhem and leaves innocent bystanders with serious injuries; it's a desperate race against time as detectives are tipped off that one of the key suspects is trying to flee the UK to Romania.

Investigating miracles with Pastor Tymme Reitz and Dr Michael Shermer.

After a Texas mother is found murdered in an office bathroom, her husband admits a disturbing past while police chase down a serial killer; the case goes cold until an oversight leads to a surprise suspect and an FBI manhunt south of the border.

It's Christmas at Button House, and Mike is determined to make it perfect for his family; Alison is determined to deliver the best Christmas ever for the living and the dead, although the latter aren't filled with festive cheer.

A woman vanishes during her nightly walk in 2018; the last time she's seen alive is by an ATM security camera that could hold the key to solving her disappearance.

The double life of Ashlie Stapp led to feed her addiction; she kept her US Marine boyfriend in the dark while manipulating ham radio operator Henry Stange into giving her painkillers, with fatal results for this love triangle.

Five years ago, Robby came out to his wife and two sons as transgender. After her transition, her drinking intensified and is now in fear of losing her family forever.

Examining the evil acts that Jennifer Sybert, a hairdresser in Florida, tried to keep hidden from her colleague, top stylist Joleen Cummings; an entanglement with Joleen's ex blows the lid off Jennifer's criminal past, and leads to a ghastly slaying.

Learn how influencer Mahek Bukhari and her mom, Ansreen, became the UK's first mother and daughter convicted of a double murder; see how the pair hatched a deadly plot when Hashim Ijazuddin tried to blackmail his much older ex-lover, Ansreen.

Stake out actor Claire Sweeney's riverside apartment, where a presence walks the hallways; figuring out who this wandering soul could be and meeting another sinister spirit that makes Ian's psychic senses go haywire.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

A look at what could cause once-thriving groups of people to just abandon their great cities, never to return; modern scientific knowledge may be able to help answer the unsolved questions surrounding these lost civilizations.

The demons and failed hopes that led gentle giant Greg to follow in his father's footsteps; his mother's and sister's pain as they try to show Greg that his musical dreams are worth kicking his life-threatening fentanyl-and-meth habit.

Stake out actor Claire Sweeney's riverside apartment, where a presence walks the hallways; figuring out who this wandering soul could be and meeting another sinister spirit that makes Ian's psychic senses go haywire.

In Grimsby, a vicious mass street brawl causes mayhem and leaves innocent bystanders with serious injuries; it's a desperate race against time as detectives are tipped off that one of the key suspects is trying to flee the UK to Romania.

Investigating miracles with Pastor Tymme Reitz and Dr Michael Shermer.

It's Christmas at Button House, and Mike is determined to make it perfect for his family; Alison is determined to deliver the best Christmas ever for the living and the dead, although the latter aren't filled with festive cheer.

A look at what could cause once-thriving groups of people to just abandon their great cities, never to return; modern scientific knowledge may be able to help answer the unsolved questions surrounding these lost civilizations.

A woman vanishes during her nightly walk in 2018; the last time she's seen alive is by an ATM security camera that could hold the key to solving her disappearance.

Triangle shaped hovering objects are seen by thousands of people and investigated by scientists and government officials, yet they could never be explained; the sightings occurred in a more than two year wave over Belgium, beginning in late 1989.

Five years ago, Robby came out to his wife and two sons as transgender. After her transition, her drinking intensified and is now in fear of losing her family forever.

Learn how influencer Mahek Bukhari and her mom, Ansreen, became the UK's first mother and daughter convicted of a double murder; see how the pair hatched a deadly plot when Hashim Ijazuddin tried to blackmail his much older ex-lover, Ansreen.

A baby monitor picks up a ghostly figure walking next to a child's bed. A speeding UFO infiltrates an air show. A young woman ushers in the new year with an undeniable sign from her late father.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

Five years ago, Robby came out to his wife and two sons as transgender. After her transition, her drinking intensified and is now in fear of losing her family forever.

A former skeptic endures 10 years of paranormal phenomena in his home; a man believes an angry spirit is punishing him for filming in an abandoned asylum; a young woman finds true love -- with her doll.

In Grimsby, a vicious mass street brawl causes mayhem and leaves innocent bystanders with serious injuries; it's a desperate race against time as detectives are tipped off that one of the key suspects is trying to flee the UK to Romania.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

A look at what could cause once-thriving groups of people to just abandon their great cities, never to return; modern scientific knowledge may be able to help answer the unsolved questions surrounding these lost civilizations.

A baby monitor picks up a ghostly figure walking next to a child's bed. A speeding UFO infiltrates an air show. A young woman ushers in the new year with an undeniable sign from her late father.

Triangle shaped hovering objects are seen by thousands of people and investigated by scientists and government officials, yet they could never be explained; the sightings occurred in a more than two year wave over Belgium, beginning in late 1989.

Learn how influencer Mahek Bukhari and her mom, Ansreen, became the UK's first mother and daughter convicted of a double murder; see how the pair hatched a deadly plot when Hashim Ijazuddin tried to blackmail his much older ex-lover, Ansreen.

Five years ago, Robby came out to his wife and two sons as transgender. After her transition, her drinking intensified and is now in fear of losing her family forever.

A baby monitor picks up a ghostly figure walking next to a child's bed. A speeding UFO infiltrates an air show. A young woman ushers in the new year with an undeniable sign from her late father.

Triangle shaped hovering objects are seen by thousands of people and investigated by scientists and government officials, yet they could never be explained; the sightings occurred in a more than two year wave over Belgium, beginning in late 1989.

Five years ago, Robby came out to his wife and two sons as transgender. After her transition, her drinking intensified and is now in fear of losing her family forever.

Emma Hedges' return to Dundee brings her mother's unsolved murder into sharp focus; resolved to find the truth, Emma puts love and life at risk as she fights to bring the killer to justice.

A former skeptic endures 10 years of paranormal phenomena in his home; a man believes an angry spirit is punishing him for filming in an abandoned asylum; a young woman finds true love -- with her doll.

Emma soon feels overwhelmed by the police interest and wonders what she's started; however, when the stars align to put Daniel in her path, Emma feels a deep connection.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

McKinven's enquiries ruffle feathers and a furious Julie chides Emma for dragging up the past; when Emma is threatened with a knife, it's clear that someone's hiding something.

A couple checks into a boutique hotel packed with violent ghosts pleading from beyond the grave.

Taking a look at the case of Sharee, who constantly lied to hide her spending sprees and raunchy online exchanges from her husband. The homemaker manipulated an ex-cop into believing she was being abused before a murder tore their lives apart.

When paramedic Stacy arrives at a suicide scene, she encounters an oppressive presence; paramedic Chris hears footsteps in an empty building in a school; paramedic Patrick comes across a grim reaper at an old hospital.

With all the secrets, lies, greed, and infidelity, Ernie and Charlene Scherer's American-dream life was not exactly what it seemed like; a look into how the exposure of their dangerous double life led to one last fatal gamble.

A man observes a saucer-shaped object in a lagoon; an unusual light in a field causes the driver to veer off the road.

A policeman discovers an oval-shaped object without windows or doors; a woman spots an aura of light surrounding a small tree.

Brandon, Mustafa, Malia, and Kevin take a look at some shocking finds and new data, from environmental aberrations to electronic voice phenomena, and ponder a series of lingering questions from their investigations.

Kelly and the team help the Lake Station Police department look into the 2007 slaying of a kind-hearted WWII veteran killed with a sledgehammer; tracing the purchases on his stolen credit card may be the key to solving the case.

The team helps the Abilene Police Department investigate the heartbreaking double homicide of a devoted mother and her young daughter strangled in their home; DNA evidence left at the scene might help identify their killer.

Kelly and Steve join the Kankakee Police Department to help a woman who just missed seeing her mother's killer at their front door when she was 11 years old; decades later, efforts are made to recall any clues to help crack the case.

Kelly and Steve extend their stay in Illinois to help the Kankakee Police Department look into another mysterious case -- the unsolved homicide of a mother-to-be and her unborn child.

Kelly, Tonya and the Alcoa Police Department investigate the 1990 rape and murder of a beloved 80-year-old grandmother and consider if the perpetrator may have been a sadistic random intruder or a member of her own family.

Suspicion builds as the DaVita dialysis center in Texas experiences a huge increase in code blues, with many patients succumbing to their injuries.

Malcolm Webster's wife, Claire, died in a car crash in a remote part of Scotland; his second wife Felicity almost dies in similar circumstances in New Zealand.

Childhood friends Ashley Taylor and Kevin Sweat reconnect as adults; Ashley's strange pre-wedding disappearance sheds light on Kevin's disturbing past and his connection to a string of unsolved murders.

Kelly and Terri investigate the 2015 homicide of a beloved father, veteran and Little League coach; a reexamination of the crime scene reveals a terrifying clue into who may have killed him.

A brutal double murder shocks Northern California's peace-loving and laid back Marin County; with residents reeling, police chase an elusive killer through three counties and multiple crime scenes to unravel a twisted tale of terror.

A man is viciously attacked on his doorstep with what appears to be a gun; armed police arrest a gang of four, but it's a race against time to prove they have the right men.

Kelly and Terri investigate the 2015 homicide of a beloved father, veteran and Little League coach; a reexamination of the crime scene reveals a terrifying clue into who may have killed him.

In the summer of 1952, stories of U.S. Air Force jets chasing UFOs over the White House knock the Korean War off the front pages of newspapers; as rumors spread, President Harry S. Truman demands to know what was flying over his house.

A young recruit encounters aliens in the Nevada desert in the 1960s; he claims they were working with the US military and housed a spaceship in a secret hangar nearby.

Billy Meier claims he's traveled through time and space with an alien race from the Pleiades star cluster; in the decades following his revelation, both skeptics and ufologists say it's a hoax despite Meier providing photographic evidence.

In 1978, UFO enthusiast Paul Bennewitz claims he's intercepted extraterrestrial messages; military officials send counter intelligence officer Richard Doty to feed Bennewitz lies; questioning whether Doty himself is a pawn in an even bigger scheme.

In 1980, a UFO detected on military radar, lands near crucial NATO bases; a group of military personnel claim to have seen a shiny metallic object with coloured lights and hieroglyphic inscriptions.

Triangle shaped hovering objects are seen by thousands of people and investigated by scientists and government officials, yet they could never be explained; the sightings occurred in a more than two year wave over Belgium, beginning in late 1989.

When a gravestone is moved inside a B&B, its new owners suffer the wrath of offended spirits with evil intentions.

With all the secrets, lies, greed, and infidelity, Ernie and Charlene Scherer's American-dream life was not exactly what it seemed like; a look into how the exposure of their dangerous double life led to one last fatal gamble.

A police officer chases a ghostly intruder around a nursing home; a man's spirit watches out for his baby from the other side after a deadly car crash; a first responder receives an extremely cold slap in the face from an unseen entity.

Every day, all around the world, in the most ordinary places, regular people are spotting UFOs; these witnesses will never see the night sky the same way, ever again.

These are the witnesses that have been literally touched by the unknown; physical contact events that take the shape of nightmares, complete with alien examinations and inexplicable metal implants discovered inside human bodies.

Confronting the bloody, greedy past of Benham, Kentucky, where an ominous mountain and a historic mining conflict have turned the land into a hotbed of paranormal activity.

For over 1,000 years, people worldwide claim to develop injuries spontaneously.

Jimmy Hoffa makes enemies easily.

A historical building in Louisiana with a dark history; unsolved murder, vengeful ghosts and things that go bump in the night.

Numerous aviation disasters are associated with the number 191, leading many airlines to refuse to schedule a flight 191 out of fear; experts investigate if the ominous flight number is cursed.

A bizarre trend happens in Ireland in the 1980s.

Experts investigate claims of extraordinary paranormal activity at the White House and question whether 1600 Pennsylvania Avenue is cursed.

Experts investigate why a Los Angeles hotel has become a magnet for death and if an ominous flight number associated with multiple aviation disasters is cursed.

Elvis' music will live on forever.

Exploring beliefs about where people go when they die, reincarnation and unlocking past life memories.

Experts investigate the 1961 alien abduction of Betty and Barney Hill; they explore past life regression and the possibilities of reincarnation.

Taking a look at a violent home invasion that may actually have been a case of mistaken identity; CID Detective Simon Hawkins and his team track down the offenders and confront them with evidence that could put them behind bars.

Investigating an alarming string of burglaries targeting the elderly with CID Inspector Tom Smith and his team; they narrow down the suspect list and focus their attention on a slippery felon who is wise to all of their tactics.

The double life of Ashlie Stapp led to feed her addiction; she kept her US Marine boyfriend in the dark while manipulating ham radio operator Henry Stange into giving her painkillers, with fatal results for this love triangle.

Deadly forests, haunted houses, and mountains where visitors never return alive; a look at what constitutes an evil place and whether these locations are imbued with dark energy that is currently beyond understanding.

A strange figure caught on a security cam; a statue that appears to be crying real tears; a smartphone app said to allow people to control reality.

Recent video of a large, hairy creature and casts of its footprints; a man dodges rush hour traffic with seemingly superhuman reflexes; a woman escapes from her sinking vehicle without opening the doors or windows.

The guys visit a condemned former boys' reformatory in Ione, Calif., believed to house vengeful spirits.

Deadly forests, haunted houses, and mountains where visitors never return alive; a look at what constitutes an evil place and whether these locations are imbued with dark energy that is currently beyond understanding.

A strange figure caught on a security cam; a statue that appears to be crying real tears; a smartphone app said to allow people to control reality.

Recent video of a large, hairy creature and casts of its footprints; a man dodges rush hour traffic with seemingly superhuman reflexes; a woman escapes from her sinking vehicle without opening the doors or windows.

The guys visit a condemned former boys' reformatory in Ione, Calif., believed to house vengeful spirits.

A medical assistant starting a job in a former TB hospital discovers she's not alone in the building; a rookie nurse takes her break in a room rumored to be haunted; a procedural nurse enconters a hostile entity within the walls of an old hospital.

An orderly discovers his frightening gift for seeing spirits of the recently deceased and sensing those who are about to die; a hospice nurse realizes the end-of-life facility where she works is haunted by multiple spirits, including a black dog.

A nurse in Texas discovers her hospital is haunted by a mischievous boy whose pranks becomes increasingly malicious; a cook at a county hospital witnesses paranormal events in connection with the long-time janitor.

A nurse aide discovers that her care facility contains a horrific creature that threatens her elderly patients; encounters in the hospital halls with a nefarious crone compels a teenager to hold vigil by her dying grandmother's bedside.

Two friends on a ghost tour in a haunted bed and breakfast stir up an unwanted dark presence; a guesthouse owner is terrorized by an undesirable force that moves from setting fires to triggering a full-on assault.

A man observes a saucer-shaped object in a lagoon; an unusual light in a field causes the driver to veer off the road.

A policeman discovers an oval-shaped object without windows or doors; a woman spots an aura of light surrounding a small tree.

An emergency technician responds to a call in a home that contains a collection of mannequins; a first responder hears the voice of a dead woman; a police officer investigates strange goings-on in an elderly woman's attic.

The guys visit a condemned former boys' reformatory in Ione, Calif., believed to house vengeful spirits.

A strange figure caught on a security cam; a statue that appears to be crying real tears; a smartphone app said to allow people to control reality.

Recent video of a large, hairy creature and casts of its footprints; a man dodges rush hour traffic with seemingly superhuman reflexes; a woman escapes from her sinking vehicle without opening the doors or windows.

Hunting for restless souls in a coal mine that stands near a purported mass grave; examining the data after the team conducts a series of paranormal experiments and finding out if a living man's visits are keeping a departed spirit attached.

Dark energy makes its unsettling mark at an eerie hotel that's therapy for an engineer's childhood haunting; an 18th-century jailer's ghost and a young holidaymaker; a killer apparition disturbs a peaceful bath.

Catching hellish invaders on the hunt for souls and blood in the human world.

A paranormal investigator explores an ancient inn's haunted past marked by witch trials; a couple is forced to relive a hotel's shocking century-old nightmare; a Yuletide getaway turns to terror with the visit of a ghost scarred by traumatic events.

The Perry-Mansfield Performing Arts Camp deep in northern Colorado forestland is plagued by reports of unsettling paranormal encounters; in the first professional investigation of the site, Grant sends the team ahead to begin without him.

The new owners of Waverly Hills Sanatorium near Louisville, Ky., receive reports of unsettling paranormal claims, including blood-curdling screams and unexplained sounds, from visitors.

Fort Stanton in New Mexico is established in the 19th century as a military post, then converted into a tuberculosis hospital; reports of paranormal activity date back to the 1940s, but a recent uptick in claims causes concerns about staff safety.

Since its founding in 1873, the remote mining town of Clifton, Ariz., is trapped in a devastating cycle of violence, mayhem and natural disaster; along with the town's brutal past comes a long history of dark paranormal experiences.

When shoe print bruises are found on the body of a teenage girl, the investigators attempt to make sense of a tangled web of false leads, witness statements, and CCTV footage.

With unprecedented access, this series follows the crack team of investigators from one of Britain's' best homicide squads as they attempt to solve some of the most perplexing killings.

With unprecedented access, this series follows the crack team of investigators from one of Britain's' best homicide squads as they attempt to solve some of the most perplexing killings.

With unprecedented access, this series follows the crack team of investigators from one of Britain's' best homicide squads as they attempt to solve some of the most perplexing killings.

With unprecedented access, this series follows the crack team of investigators from one of Britain's' best homicide squads as they attempt to solve some of the most perplexing killings.

The new owners of Waverly Hills Sanatorium near Louisville, Ky., receive reports of unsettling paranormal claims, including blood-curdling screams and unexplained sounds, from visitors.

Fort Stanton in New Mexico is established in the 19th century as a military post, then converted into a tuberculosis hospital; reports of paranormal activity date back to the 1940s, but a recent uptick in claims causes concerns about staff safety.

Since its founding in 1873, the remote mining town of Clifton, Ariz., is trapped in a devastating cycle of violence, mayhem and natural disaster; along with the town's brutal past comes a long history of dark paranormal experiences.

Disturbing paranormal activity at the Glenn House in the small town of Cape Girardeau, Mo., prompts the local historical association's president to reach out to Grant for help; as the investigation begins, the house quickly lives up to its claims.

Paranormal activity at the Wendover Airfield in Utah causes the staff to fear for its safety; the team investigates reports from a full-bodied apparition of a World War II soldier to a mysterious blinding light.

A man of science checks into a haunted hotel that so terrifies him he buys his own haunted bed-and-breakfast to convert into a paranormal laboratory; a new hotel employee is nearly electrocuted by something not of this world.

The team investigates the 200-year-old Essex home of dancer and choreographer Louie Spence, who's been experiencing strange smells and sinister shadows.

A correctional officer watches the Grim Reaper collect a dead prisoner's soul; a ghost attaches itself to an emergency technician; an elderly man is saved by his late wife.

Danny Robins investigates the real-life stories of seemingly paranormal encounters; in the process, he talks to people who say they have encountered the supernatural and consults experts in order to discover the truth.

On a September morning in 1994, students at a Zimbabwe school witness a silver craft land in a nearby field; numerous adults corroborate the UFO sighting, but the children are silenced; many maintain their account of the incident is true.

Looking for proof of apparitions, eerie voices and other inexplicable phenomena inside a grim execution site; the team explores Harlan County's courthouse and jail, where the fallout from a revenge killing and the coal wars lingers.

When a city official is gunned down in Berryville, Va., shocked residents are left wondering who among them is a cold-blooded killer; as police dig into the victim's life, they learn not everyone held her in high regard.

Murders are rare in tranquil Delta Township, Mich., so when a well-liked couple is gunned down in their home, residents are terrified -- until police discover the monster accidentally left a trail of breadcrumbs leading right to his door.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

A brutal double murder shocks Northern California's peace-loving and laid back Marin County; with residents reeling, police chase an elusive killer through three counties and multiple crime scenes to unravel a twisted tale of terror.

Kelly and Steve look into the 2007 murder of a single father who was gunned down by a sharpshooter with a high-powered rifle; state-of-the-art digital forensics may help poke a hole in the suspect's alibi.

A woman vanishes during her nightly walk in 2018; the last time she's seen alive is by an ATM security camera that could hold the key to solving her disappearance.

Kelly and Terri investigate the 2015 homicide of a beloved father, veteran and Little League coach; a reexamination of the crime scene reveals a terrifying clue into who may have killed him.

For the 100th case, the 2007 murder of a popular college student who was stabbed to death in her bed; help is needed from forensic pathologist, digital forensics expert and DNA lab to solve the case.

Jordon's natural musical talent is hindered by his addiction to crystal meth, which began at at 16.

Elliot overcame a traumatic childhood and moved to Las Vegas to pursue his dream of becoming a chef, but the rampant drug culture in restaurant kitchens along with the sudden death of his brother sent Elliot reeling.

Malcolm Webster's wife, Claire, died in a car crash in a remote part of Scotland; his second wife Felicity almost dies in similar circumstances in New Zealand.

The guys visit a condemned former boys' reformatory in Ione, Calif., believed to house vengeful spirits.

Rob and the boys travel to the UFO hotspot of Phoenix, where they meet with alleged alien abductee Travis Walton and a local fulgurite specialist; family friend Shaman John claims he can help the guys open an interdimensional portal.

Rob, Mathew and John Owen hitch a ride on a research vessel to visit a bizarre geographic anomaly located off the coast of Malibu believed by many to be an underwater alien base.

Rob, Matthew and John Owen visit the Dugway Proving Ground, a military testing base in Utah considered by many to be the new Area 51; the guys video chat with military historian Michael Schratt and meet with UFO expert Melissa Tittl.

Rob and the boys visit two specialists in Santa Barbara, Calif., to master the top-secret art of remote viewing, then split up to test their new skills.

Matthew studies for an exam; Rob and John Owen travel to Boise, Idaho, to visit the Old State Penitentiary.

Bigfoot hunter Matt Moneymaker shows Rob and the boys his favorite spots and how to use calls and wood knocks to attract one of the many Sasquatch that he claims inhabit Northern California's redwood forests and the Hoopa Indian Reservation.

Rob and the boys take their pursuit of Bigfoot to the backwoods of Oklahoma, where locals refer to the mythical creature as the Wood Ape.

Rob and his sons reflect on their adventures while investigating the unknown, from the paranormal to the extraterrestrial.

Jordon's natural musical talent is hindered by his addiction to crystal meth, which began at at 16.

Every day, all around the world, in the most ordinary places, regular people are spotting UFOs; these witnesses will never see the night sky the same way, ever again.

An investigation of ghost activity reports at a historic Tennessee horse farm, where guests keep running into the long-gone founder and his family; the team tries to find out why their psychic connection to this place is so strong, even after death.

A Homeland Security officer is left shaken by an encounter with an otherworldly intruder inside an empty government building; a mysterious soldier saves a hospital corpsman's life during a hurricane; paramedics respond to a ghostly 911 call.

With all the secrets, lies, greed, and infidelity, Ernie and Charlene Scherer's American-dream life was not exactly what it seemed like; a look into how the exposure of their dangerous double life led to one last fatal gamble.

Taking a look at the case of Sharee, who constantly lied to hide her spending sprees and raunchy online exchanges from her husband. The homemaker manipulated an ex-cop into believing she was being abused before a murder tore their lives apart.

Tracking down the screaming ghost of legislator Cassius Marcellus Clay, who allegedly wanders the halls of the fabled White Hall manor; the team does a thorough investigation and looks inside the life of this unyielding political figure.

The guys visit a condemned former boys' reformatory in Ione, Calif., believed to house vengeful spirits.

Rob and the boys travel to the UFO hotspot of Phoenix, where they meet with alleged alien abductee Travis Walton and a local fulgurite specialist; family friend Shaman John claims he can help the guys open an interdimensional portal.

Rob, Mathew and John Owen hitch a ride on a research vessel to visit a bizarre geographic anomaly located off the coast of Malibu believed by many to be an underwater alien base.

Rob, Matthew and John Owen visit the Dugway Proving Ground, a military testing base in Utah considered by many to be the new Area 51; the guys video chat with military historian Michael Schratt and meet with UFO expert Melissa Tittl.

Rob and the boys visit two specialists in Santa Barbara, Calif., to master the top-secret art of remote viewing, then split up to test their new skills.

Matthew studies for an exam; Rob and John Owen travel to Boise, Idaho, to visit the Old State Penitentiary.

Bigfoot hunter Matt Moneymaker shows Rob and the boys his favorite spots and how to use calls and wood knocks to attract one of the many Sasquatch that he claims inhabit Northern California's redwood forests and the Hoopa Indian Reservation.

Rob and the boys take their pursuit of Bigfoot to the backwoods of Oklahoma, where locals refer to the mythical creature as the Wood Ape.

Rob and his sons reflect on their adventures while investigating the unknown, from the paranormal to the extraterrestrial.

The guys visit a condemned former boys' reformatory in Ione, Calif., believed to house vengeful spirits.

Matthew studies for an exam; Rob and John Owen travel to Boise, Idaho, to visit the Old State Penitentiary.

Rob and the boys take their pursuit of Bigfoot to the backwoods of Oklahoma, where locals refer to the mythical creature as the Wood Ape.

Taking a look at the case of Sharee, who constantly lied to hide her spending sprees and raunchy online exchanges from her husband. The homemaker manipulated an ex-cop into believing she was being abused before a murder tore their lives apart.

Embark on an emotional paranormal journey with "Ghost Hunters" alums Brandon Alvis and Mustafa Gatollari; they help regular people get in touch with departed family, find lost connections and uncover haunting revelations about their ancestry.

Angelique, an Espiritismo practitioner, discovers a deep bond with her aunt extends from beyond the grave, possibly connecting her with the terrifying premonitions of death she receives of those closest to her.

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.

Kelly and Steve investigate the biggest unsolved cold case in East Texas -- the 1992 death of a popular teen whose charred remains were found in her car.

For the first time, Kelly and Steve investigate two missing persons cases at once, a loving mother and her high school friend who vanished just months apart.

The team tackles the twisted murder case of Rhonda Richardson, who went searching for her lost dog and was later found seemingly scalped by a sadistic killer; the biggest twist is a new piece of evidence that breaks the case wide open.

Kelly and Steve investigate the brutal homicide of a beloved seminary student who was brutally hung and stabbed to death in the chapel restroom; their investigation reveals even more dark secrets and sinister deeds.

In 2000, a young mother was abducted from a parking lot and executed in a nearby field; state-of-the-art DNA testing may provide the answer.