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.

Kelly and Tonya investigate the mysterious disappearance of a mother who went missing after a Fourth of July celebration; an old tip on where her body might be buried takes a turn when cadaver dogs signal they've found something.

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 a person's day job involves the oversight of missile silos, nuclear facilities or a military base, the last complication they want to deal with is a close encounter with a UFO; here, an already frightening phenomenon turns positively chilling.

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.

Grant is contacted by the principal of a century-old high school in Pocatello, Idaho, that is rumored to be haunted; the school's security cameras capture an unexplained electrical disturbance, followed by what appears to be a ghostly apparition.

The team comes to the aid of a woman in Hanover, Penn., who has been tortured for years by unexplained activity in her home; Grant returns to the St. Augustine Lighthouse to investigate a reported increase in paranormal activity around the landmark.

The team travels to Albion, N.Y., to help a home renovator whose dream project has become a nightmare; a tale of warring wives and tragic death on the property has Grant and the team believing the home may be haunted by one of its former matriarchs.

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.

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.

How seven-year-old Rachael Watts survived an attempt on her life and put her would-be killer in jail; uncovering the miscarriage of justice that allowed this monster to attack again after he was acquitted for a notorious double murder.

Look at photographer Sania Khan's viral TikTok posts that detail the lies and abuse she suffered at the hands of her ex-husband Raheel Ahmad; learn how he exacted his jealous revenge by ambushing his former wife on the day she planned to escape.

Retrace the final steps of Alexis Starkey, a TikTok star who vanished and then turned up dead a week later; examine how police found her husband, who also mysteriously went missing, at his daughter's house, where he took matters into his own hands.

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.

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.

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.

A 10,000-gallon water tank is found to be empty after an object is spotted hovering over it; amaranth plants wilt after a saucer-shaped craft hovers above them.

How seven-year-old Rachael Watts survived an attempt on her life and put her would-be killer in jail; uncovering the miscarriage of justice that allowed this monster to attack again after he was acquitted for a notorious double murder.

Examining whether a girl whose reflection doesn't match her expression is proof of a simulated reality; suggestion that Mars was colonized centuries ago; a mysterious hum being heard around the world.

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.

Broadhaven, a sleepy little seaside village in Wales, is known as the UFO capital of Europe.

The Prince of Pop's incredible talent is matched only by his alleged salacious personal life.

Pots of gold and wishes granted is what's promised if you catch a Leprechaun.

Experts investigate if a mysterious caller had inside knowledge about the assassination of President John F. Kennedy.

Discussing how the human body can catch fire without cause.

A look at this English town in Buckinghamshire and why so many spirits of the past haunt its streets.

A look at why so many people see a vision of Jesus in seemingly normal things such as a tree stump or an antique cabinet.

Exploring the world of psychics.

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.

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.

How seven-year-old Rachael Watts survived an attempt on her life and put her would-be killer in jail; uncovering the miscarriage of justice that allowed this monster to attack again after he was acquitted for a notorious double murder.

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.

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.

Beautiful, ambitious reporter Jennifer Servo is shockingly murdered in 2002; Kelly and Steve are determined to help the Abilene Police Department catch her killer.

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.

On their second night in the remote mining town of Clifton, Ariz., the team revisits several hubs of paranormal activity as they try to get to the bottom of the aggressive phenomena; Grant, Brandon and Brian have a breakthrough in the Boarding House.

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.

A 10,000-gallon water tank is found to be empty after an object is spotted hovering over it; amaranth plants wilt after a saucer-shaped craft hovers above them.

A star lands in France, emitting solid beams of light; Belgian police officers follow a triangular craft that shoots out that are red balls of light.

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.

Jin Kelly, Shauna Grace, and Robert Sheaffer present their views about shadow people and the proof of their existence is analyzed in detail.

For centuries, archaeologists have tried to unravel the mysteries of how and why certain incredible structures like the Great Pyramid at Giza, the staircase at Loretto Chapel, and Coral Castle were built.

Examining whether a girl whose reflection doesn't match her expression is proof of a simulated reality; suggestion that Mars was colonized centuries ago; a mysterious hum being heard around the world.

Host Tony Harris separates the real from the fake in some of the top UFOs caught on camera in recent history.

Dr. Nany Irwin and Olympia LePoint present their views about the mind control phenomenon and the proof of its actuality is analyzed in detail.

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.

Glitches in the matrix stun spectators in Paris, Los Angeles and Argentina; a spirit attempts to halt construction on a family's home in the Philippines; a Bigfoot enthusiast captures something shocking in Long Island.

After almost dying, a woman is stalked by an angry spirit she met on the other side; at a Catholic hospital, a housekeeper encounters the ghosts of former nuns; an EMT comes face-to-face with a paranormal possession as he transfers a patient.

A cook encounters pure evil whenever she ventures to the hospital's basement; a support worker is terrified as a guilty entity engulfs the group home in dark energy.

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.

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.

When a person's day job involves the oversight of missile silos, nuclear facilities or a military base, the last complication they want to deal with is a close encounter with a UFO; here, an already frightening phenomenon turns positively chilling.

Nestled within an affluent suburb of Detroit, Jane and Bob Bashara live a picture-perfect life with a strong community of friends and grown children; they seem like a happy couple, but they are living in a complicated web of shocking, dark secrets.

The ghost of a young girl follows a police officer home from the scene of an accident; a spirit plays tricks on a deputy at an Alabama mansion; a paramedic is shocked to see the apparition of a bride and groom walking down the aisle of a church.

Scratching the surface of Edward Shin's existence and seeing how the sociopath hid under a squeaky-clean exterior before his business partner, Chris Smith, started to dig up the truth.

A Canadian farmer sees five identical bun-shaped objects; thousands report seeing a large triangular-shaped object for a 3-year period over New York's Hudson Valley.

A triangular craft beelines toward a husband and his pregnant wife; a disc-shaped craft emits a solid beam of light that releases a blast of flame.

Study the branches of a haunted family tree at Brennan House in Louisville, Kentucky. Learn why the successful, childless clan that grew up there always returned home to die, and watch as the team tries to find out if they've never really left.

Cameras onboard a massive cargo ship in the Black Sea capture the vessel buckling and breaking in half as if seized by a mysterious force; experts investigate a bizarre area of perilous waters linked to a history of Bermuda Triangle-like sinkings.

Actress Alysia Reiner seeks Kim's help to confront the spirits that are terrorizing her daughter in her Harlem brownstone.

The fatal shooting of Linda Marie Brown seems like an open and shut case, but when Linda's teenage stepdaughter is found comatose nearby clutching a suicide note that reads, "I didn't mean to hurt her," the case takes a turn.

Two apparitions crash a livestream from a centuries-old English graveyard; a witch soars through the sky above a mountain in Chile; a mischievous black cat casts a fiery spell in Egypt.

Cameras onboard a massive cargo ship in the Black Sea capture the vessel buckling and breaking in half as if seized by a mysterious force; experts investigate a bizarre area of perilous waters linked to a history of Bermuda Triangle-like sinkings.

Discovering who or what was rattling drawers, ringing bells and flushing toilets in Ian's childhood home; revisiting an event that changed his life forever.

Two apparitions crash a livestream from a centuries-old English graveyard; a witch soars through the sky above a mountain in Chile; a mischievous black cat casts a fiery spell in Egypt.

The fatal shooting of Linda Marie Brown seems like an open and shut case, but when Linda's teenage stepdaughter is found comatose nearby clutching a suicide note that reads, "I didn't mean to hurt her," the case takes a turn.

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.

A young mother of five is found shot to death in her home.

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.

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.

A young mother of five is found shot to death in her home.

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.

Actress Alysia Reiner seeks Kim's help to confront the spirits that are terrorizing her daughter in her Harlem brownstone.

Cameras onboard a massive cargo ship in the Black Sea capture the vessel buckling and breaking in half as if seized by a mysterious force; experts investigate a bizarre area of perilous waters linked to a history of Bermuda Triangle-like sinkings.

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.