T+E

At a summer party, 17-year-old Charlie Cosser is fatally stabbed. His dad's TikTok videos reveal a family shattered by senseless violence.

New York City, known for its diversity and acceptance, becomes the focus for a sadistic serial killer targeting the gay community. It takes dogged determination and new technology to bring a monster's reign of terror to an end.

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.

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

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.

Looking beneath the veneer of money, connections and fast cars that surrounded Tennessee couple Joe and Tina Corona; learning how secret lovers, shady investments and threats to reveal Joe's financial sins added up to the perfect recipe for murder.

Hunt for the truth in Massachusetts; Salem's ghosts -- including that of the first woman hanged for witchcraft -- reveal things about the city's infamous witch trials; a message from a man executed in the worst way imaginable.

Discovering shocking truths about religious rituals, sacred symbols, and spiritual traditions; learning the brutal truth about execution rites in Roman England, looking at shark bones in a Peruvian temple; unearthing a silver amulet in Germany.

Uncover how a royal imprisoned two princes and took the British throne; ponder how the Irish crown jewels were stolen from a locked safe inside Dublin Castle, then see if the death of Amy Robsart at Elizabeth I's court was an accident or murder.

Learning why an important urban center is sinking toward oblivion; soaring over sprawling ruins buried under Saharan sands; learning the modern secret of an ancient fortress; eyeing a ghost town on the edge of the Gobi.

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.

A mysterious book that is 500 years old, almost 300 pages long, full of handwritten notes and illustrations and so far no one can translate a word of it.

A man shares his story of a monster attack; a couple experience violent paranormal activity; Holly tells of being haunted by her ex-husband's ghost.

A large black creature emerging from a family's toilet could be some kind of mythical creature; an eerie radio station may secretly be part of a Russian military plan; an astronaut sees something out the window of the International Space Station.

A sword discovered at the bottom of a river may be the famed Excalibur, wielded by King Arthur himself; a doorbell cam captures possible proof of teleportation; aliens could be visiting a family every Independence Day.

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.

Here begins as a hunt for a paranormal research facility in America's most haunted state turns into a journey filled with discoveries for a team of supernatural investigators.

A headless skeleton is discovered on Australia's Beacon Island; near the Marshall Islands, a huge undersea crater is discovered; in Mexico, an island full of dolls reveals a grim history; animal bones are found on an island in the English Channel.

Delving into the stories of killers who break the Hippocratic Oath to use their medical knowledge for murder; they take lives of vulnerable victims instead of caring for them.

New York City, known for its diversity and acceptance, becomes the focus for a sadistic serial killer targeting the gay community. It takes dogged determination and new technology to bring a monster's reign of terror to an end.

A large black creature emerging from a family's toilet could be some kind of mythical creature; an eerie radio station may secretly be part of a Russian military plan; an astronaut sees something out the window of the International Space Station.

A sword discovered at the bottom of a river may be the famed Excalibur, wielded by King Arthur himself; a doorbell cam captures possible proof of teleportation; aliens could be visiting a family every Independence Day.

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.

Examining if modern technology and scientific knowledge can help protect people from almost anything, including natural disasters, or if vulnerability remains a factor.

Witness an encounter with a strange humanoid that was more than two metres tall. Review the eyewitness accounts of Jesús Jofre and two of his fellow soldiers, who came face to face with this.

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.

Examining if modern technology and scientific knowledge can help protect people from almost anything, including natural disasters, or if vulnerability remains a factor.

Witness an encounter with a strange humanoid that was more than two metres tall. Review the eyewitness accounts of Jesús Jofre and two of his fellow soldiers, who came face to face with this.

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.

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.

A large black creature emerging from a family's toilet could be some kind of mythical creature; an eerie radio station may secretly be part of a Russian military plan; an astronaut sees something out the window of the International Space Station.

A sword discovered at the bottom of a river may be the famed Excalibur, wielded by King Arthur himself; a doorbell cam captures possible proof of teleportation; aliens could be visiting a family every Independence Day.

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.

Here begins as a hunt for a paranormal research facility in America's most haunted state turns into a journey filled with discoveries for a team of supernatural investigators.

The coastal metropolis of Miami faces a triple threat of crumbling limestone bedrock, ferocious superstorms and relentless rising oceans.

Hunt for the truth in Massachusetts; Salem's ghosts -- including that of the first woman hanged for witchcraft -- reveal things about the city's infamous witch trials; a message from a man executed in the worst way imaginable.

In China, a burial site at Jiahu reveals a child's remains marked with peculiar modifications, raising questions about Chinese mortuary practices and more.

Examine mysterious holes in Israel; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

A woman's son is put in danger's way; a young boy is terrorized by a shadowy figure; Micky faces an evil spirit.

Investigating if a breed of dogs could possess the power to completely freeze time; asking if invisibility cloaking is possible; looking for evidence that aliens crash-landed in Antarctica several millenniums ago.

A petrified creature discovered in Russia is said to be the work of the mythical Baba Yaga; a possible genetic experiment gone wrong; a fire with a mind of its own.

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.

Looking beneath the veneer of money, connections and fast cars that surrounded Tennessee couple Joe and Tina Corona; learning how secret lovers, shady investments and threats to reveal Joe's financial sins added up to the perfect recipe for murder.

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.

Examining if modern technology and scientific knowledge can help protect people from almost anything, including natural disasters, or if vulnerability remains a factor.

Investigating if a breed of dogs could possess the power to completely freeze time; asking if invisibility cloaking is possible; looking for evidence that aliens crash-landed in Antarctica several millenniums ago.

A petrified creature discovered in Russia is said to be the work of the mythical Baba Yaga; a possible genetic experiment gone wrong; a fire with a mind of its own.

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.

A stag party goes awry when the host of a fishing trip is found harpooned on the beach.

In a race against the clock, Frank and Lu must track down a vital witness in a crown court trial.

The body of a woman is found on train tracks in London, badly damaged from electrical burns.

A stag party goes awry when the host of a fishing trip is found harpooned on the beach.

In a race against the clock, Frank and Lu must track down a vital witness in a crown court trial.

Kelly and Abbey investigate the 1999 murder of a beloved churchgoing mother and grandmother, shot dead in her own home; with no known enemies, was she killed to send a cruel message to someone she loved?

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.

Investigating if a breed of dogs could possess the power to completely freeze time; asking if invisibility cloaking is possible; looking for evidence that aliens crash-landed in Antarctica several millenniums ago.

A petrified creature discovered in Russia is said to be the work of the mythical Baba Yaga; a possible genetic experiment gone wrong; a fire with a mind of its own.

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.

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.

Learning why an important urban center is sinking toward oblivion; soaring over sprawling ruins buried under Saharan sands; learning the modern secret of an ancient fortress; eyeing a ghost town on the edge of the Gobi.

Looking beneath the veneer of money, connections and fast cars that surrounded Tennessee couple Joe and Tina Corona; learning how secret lovers, shady investments and threats to reveal Joe's financial sins added up to the perfect recipe for murder.

The coastal metropolis of Miami faces a triple threat of crumbling limestone bedrock, ferocious superstorms and relentless rising oceans.

In China, a burial site at Jiahu reveals a child's remains marked with peculiar modifications, raising questions about Chinese mortuary practices and more.

Entities possess an old photograph, a motorbike and a vintage car, opening up a world of confusion and terror for the owners.

A baby shark develops an eerie, humanlike face; blue lights in the sky may be a sign that the end is coming; possible aliens vacation over Lake Superior.

A human flying through the skies of Los Angeles may be a real-life Iron Man; an amorphous blob in the water could be the spawn of the fabled Kraken; aliens may have already set up a base at the North Pole.

A man and his son are stalked by a mysterious creature; bone-chilling shrieks strike fear into residents of a Colombian town; Navy radar locks onto an unidentified aircraft.

Here begins as a hunt for a paranormal research facility in America's most haunted state turns into a journey filled with discoveries for a team of supernatural investigators.

Interior designer Laurence Llewelyn-Bowen lives in a 17th century manor house in the Cotswolds that has a history of hauntings; there, a spirit has a murderous story to tell.

Examine mysterious holes in Israel; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

Meeting anxious souls whose lives were taken too soon; visiting a Ky. cinema filled with the spirits of children who died in a fire; chasing a ghostly girl in an Ontario antique shop; shivering as a departed child cries in a woman's Utah dream home.

A baby shark develops an eerie, humanlike face; blue lights in the sky may be a sign that the end is coming; possible aliens vacation over Lake Superior.

A human flying through the skies of Los Angeles may be a real-life Iron Man; an amorphous blob in the water could be the spawn of the fabled Kraken; aliens may have already set up a base at the North Pole.

A man and his son are stalked by a mysterious creature; bone-chilling shrieks strike fear into residents of a Colombian town; Navy radar locks onto an unidentified aircraft.

Witness an encounter with a strange humanoid that was more than two metres tall. Review the eyewitness accounts of Jesús Jofre and two of his fellow soldiers, who came face to face with this.

Investigating if a breed of dogs could possess the power to completely freeze time; asking if invisibility cloaking is possible; looking for evidence that aliens crash-landed in Antarctica several millenniums ago.

A new excavation at the mysterious home of the Minoans leads to a startling discovery about real-life origins of the Minotaur, and experts decode artifacts that point to bloody human sacrifices for the ferocious monster.

Private investigator Jennifer Marshall and paranormal investigator Heather Taddy travel to Dulce, N.M., to look into reports that a secret underground alien facility exists under Archuleta Mesa -- also known as Alien Mountain.

Witness an encounter with a strange humanoid that was more than two metres tall. Review the eyewitness accounts of Jesús Jofre and two of his fellow soldiers, who came face to face with this.

Investigating if a breed of dogs could possess the power to completely freeze time; asking if invisibility cloaking is possible; looking for evidence that aliens crash-landed in Antarctica several millenniums ago.

A new excavation at the mysterious home of the Minoans leads to a startling discovery about real-life origins of the Minotaur, and experts decode artifacts that point to bloody human sacrifices for the ferocious monster.

Private investigator Jennifer Marshall and paranormal investigator Heather Taddy travel to Dulce, N.M., to look into reports that a secret underground alien facility exists under Archuleta Mesa -- also known as Alien Mountain.

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.

A baby shark develops an eerie, humanlike face; blue lights in the sky may be a sign that the end is coming; possible aliens vacation over Lake Superior.

A human flying through the skies of Los Angeles may be a real-life Iron Man; an amorphous blob in the water could be the spawn of the fabled Kraken; aliens may have already set up a base at the North Pole.

A man and his son are stalked by a mysterious creature; bone-chilling shrieks strike fear into residents of a Colombian town; Navy radar locks onto an unidentified aircraft.

Examine mysterious holes in Israel; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

Hunt for the truth in Massachusetts; Salem's ghosts -- including that of the first woman hanged for witchcraft -- reveal things about the city's infamous witch trials; a message from a man executed in the worst way imaginable.

Examine mysterious holes in Israel; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

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.

Discovering shocking truths about religious rituals, sacred symbols, and spiritual traditions; learning the brutal truth about execution rites in Roman England, looking at shark bones in a Peruvian temple; unearthing a silver amulet in Germany.

Campus police officers find a male student whose head has been smashed into his steering wheel and a female cowering nearby; a firefighter arrives on the scene of a car crash, only to realize that the car passed him a few minutes earlier.

Members of the public discover that it is never a good idea to invite ghosts into your life.

Asking if aliens could be human time travelers from the future or if a trick shot could classify a person as superhuman; someone may have found the lost Malaysian Airlines Flight 370 hiding in the jungle.

Investigating mysterious lights under the surface of the deepest lake on Earth; Bigfoot's call and chatter; exploring the possibility of sentient UFOs.

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

Meeting anxious souls whose lives were taken too soon; visiting a Ky. cinema filled with the spirits of children who died in a fire; chasing a ghostly girl in an Ontario antique shop; shivering as a departed child cries in a woman's Utah dream home.

Private investigator Jennifer Marshall and paranormal investigator Heather Taddy travel to Dulce, N.M., to look into reports that a secret underground alien facility exists under Archuleta Mesa -- also known as Alien Mountain.

Kelly and Abbey investigate the 1999 murder of a beloved churchgoing mother and grandmother, shot dead in her own home; with no known enemies, was she killed to send a cruel message to someone she loved?

Witness an encounter with a strange humanoid that was more than two metres tall. Review the eyewitness accounts of Jesús Jofre and two of his fellow soldiers, who came face to face with this.

Investigating if a breed of dogs could possess the power to completely freeze time; asking if invisibility cloaking is possible; looking for evidence that aliens crash-landed in Antarctica several millenniums ago.

Asking if aliens could be human time travelers from the future or if a trick shot could classify a person as superhuman; someone may have found the lost Malaysian Airlines Flight 370 hiding in the jungle.

Investigating mysterious lights under the surface of the deepest lake on Earth; Bigfoot's call and chatter; exploring the possibility of sentient UFOs.

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

An abandoned Cold War era Russian military base is explored; a stone structure is discovered on the seafloor near Yonaguni Island; a palatial mansion is found on Isla Grande; a turbulent past is unearthed on Italy's volcanic Stromboli Island.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

A family captures footage of an emaciated cryptid on their home security camera; haunted objects compete for museum guests' attention; strange lights in the sky bring commuters to a halt.

An abandoned Cold War era Russian military base is explored; a stone structure is discovered on the seafloor near Yonaguni Island; a palatial mansion is found on Isla Grande; a turbulent past is unearthed on Italy's volcanic Stromboli Island.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

A family captures footage of an emaciated cryptid on their home security camera; haunted objects compete for museum guests' attention; strange lights in the sky bring commuters to a halt.

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.

Asking if aliens could be human time travelers from the future or if a trick shot could classify a person as superhuman; someone may have found the lost Malaysian Airlines Flight 370 hiding in the jungle.

Investigating mysterious lights under the surface of the deepest lake on Earth; Bigfoot's call and chatter; exploring the possibility of sentient UFOs.

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

A family captures footage of an emaciated cryptid on their home security camera; haunted objects compete for museum guests' attention; strange lights in the sky bring commuters to a halt.

Looking beneath the veneer of money, connections and fast cars that surrounded Tennessee couple Joe and Tina Corona; learning how secret lovers, shady investments and threats to reveal Joe's financial sins added up to the perfect recipe for murder.

In China, a burial site at Jiahu reveals a child's remains marked with peculiar modifications, raising questions about Chinese mortuary practices and more.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

The coastal metropolis of Miami faces a triple threat of crumbling limestone bedrock, ferocious superstorms and relentless rising oceans.

A mysterious book that is 500 years old, almost 300 pages long, full of handwritten notes and illustrations and so far no one can translate a word of it.

Paid programming.

Meeting anxious souls whose lives were taken too soon; visiting a Ky. cinema filled with the spirits of children who died in a fire; chasing a ghostly girl in an Ontario antique shop; shivering as a departed child cries in a woman's Utah dream home.

Nicholette's family hopes an intervention will save her from her out-of-control drug addiction.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

Victims are terrorized in their home by a knife-wielding intruder, twice in 24 hours; the race is on for police to catch the hardened criminal and his accomplice before another strike.

Detectives in Sydney launch a massive search for a tourist with life-threatening medical conditions and the beloved brother of a bestselling author goes missing in Victoria.

An abandoned Cold War era Russian military base is explored; a stone structure is discovered on the seafloor near Yonaguni Island; a palatial mansion is found on Isla Grande; a turbulent past is unearthed on Italy's volcanic Stromboli Island.

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.

Nicholette's family hopes an intervention will save her from her out-of-control drug addiction.

As summer rolls on, the police officers try to keep the Lake of the Ozarks community safe; Detective Sergeant Mark Kordula gets called to the aid of a bloodied and concussed bar patron lying in the road.

Officers in Grand Rapids are called out to deal with a man with a gun, when he shoots at an officer the whole force is mobilized; cops in Cleveland are faced with a deadly situation as they save a woman from certain death.

Inside Butler County Jail, a six-term sheriff and his seasoned staff confront an opioid crisis; as drugs flood the facility, officers work to dismantle the supply ring and maintain order.

As summer rolls on, the police officers try to keep the Lake of the Ozarks community safe; Detective Sergeant Mark Kordula gets called to the aid of a bloodied and concussed bar patron lying in the road.

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.

Nicholette's family hopes an intervention will save her from her out-of-control drug addiction.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

At a summer party, 17-year-old Charlie Cosser is fatally stabbed; his dad's TikTok videos reveal a family shattered by senseless violence.

Officers in Grand Rapids are called out to deal with a man with a gun, when he shoots at an officer the whole force is mobilized; cops in Cleveland are faced with a deadly situation as they save a woman from certain death.

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

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.

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.

Hunt for the truth in Massachusetts; Salem's ghosts -- including that of the first woman hanged for witchcraft -- reveal things about the city's infamous witch trials; a message from a man executed in the worst way imaginable.

In China, a burial site at Jiahu reveals a child's remains marked with peculiar modifications, raising questions about Chinese mortuary practices and more.

Meeting anxious souls whose lives were taken too soon; visiting a Ky. cinema filled with the spirits of children who died in a fire; chasing a ghostly girl in an Ontario antique shop; shivering as a departed child cries in a woman's Utah dream home.

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.

Paid programming.

Dracula, Lycaon of Arcadia, the Beast of Gévaudan; these are the names of grotesque monsters who have reared their terrifying heads throughout history, unearthly creatures that thrived on human blood and flesh.

A family captures footage of an emaciated cryptid on their home security camera; haunted objects compete for museum guests' attention; strange lights in the sky bring commuters to a halt.

As summer rolls on, the police officers try to keep the Lake of the Ozarks community safe; Detective Sergeant Mark Kordula gets called to the aid of a bloodied and concussed bar patron lying in the road.

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.

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

The big day has arrived at Button House, but some freak weather disrupts everyone's plans.

Mandy is someone who has been visited by her departed loved ones since childhood; she feels compelled to explore paranormal research and goes on to discover she possesses a level of mediumship abilities.

Dracula, Lycaon of Arcadia, the Beast of Gévaudan; these are the names of grotesque monsters who have reared their terrifying heads throughout history, unearthly creatures that thrived on human blood and flesh.

Hunters spot a skinwalker emerging from the woods; a man spots thousands of UFOs from his backyard; an apparition manifests on a haunted highway.

A family captures footage of an emaciated cryptid on their home security camera; haunted objects compete for museum guests' attention; strange lights in the sky bring commuters to a halt.

The big day has arrived at Button House, but some freak weather disrupts everyone's plans.

Witness an encounter with a strange humanoid that is more than two meters tall; review the eyewitness accounts of Jesús Jofre and two of his fellow soldiers, who came face to face with this possible alien and saw a UFO hovering near their barracks.

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.

A family captures footage of an emaciated cryptid on their home security camera; haunted objects compete for museum guests' attention; strange lights in the sky bring commuters to a halt.