Two sex workers in London vanish seven years apart. Years later, police make an unusual announcement, raising more questions than answers.

12-year-old Jaliek Rainwalker goes missing in upstate New York. His parents say he ran away, but law enforcement suspect his father may be involved.

Granger Taylor is a mechanical genius who built a car from scratch when he was 12 years old. As a young adult, he has haunting dreams where aliens take him on an interstellar journey. After a few weeks of these vivid dreams, Granger leaves a note for his parents

A dramatic car chase, a series of frantic phone calls, and two friends missing in the woods on an Oklahoma summer night. Once they're gone, rumors swirl.

Lopaz Richardson, a tattoo artist and devoted father, disappears after dropping off his daughter. Chilling discoveries raise suspicion of foul play.

A haunting social media post seems to predict an Indigenous mother's disappearance.

Chase Hurdle is a straight A student who loves singing, dancing, and his Catholic faith. He's looking forward to graduating from his North Dakota high school and studying psychology in college. His parents are baffled when he walks out of school one morning and goes missing

After surviving a suicide bombing overseas, Lina vanishes from a Texas playground. Was Lina's disappearance a mere wandering or a sinister abduction?

Twenty-year-old Ryan Shtuka leaves home to work at a ski resort, hoping the experience will help him find a path for his future. That can't happen now. Ryan goes to a house party during a fierce winter storm and is never seen again. There are many theories as to what happened

Police think Chase Hurdle jumped from a Bismarck bridge, but his family isn't buying it. The description of the jumper doesn't sound like Chase. A car found abandoned in a local park raises more questions and theories. The car was Daniel Olson's, a decorated veteran from West Fargo

Marshal Iwaasa is last seen by his mother after fixing her computer. His dilapidated truck is found by police 14 hours away in a remote area of the wilderness, with his personal belongings strewn around the burnt hulk of his truck. As a winter storm rolls in, the search is abandoned leaving his distraught mother Tammy and sister Paige frustrated and panicked. When the snow clears, they hire a fire investigator who suspects the police bungled a possible crime scene.

21-year old Matthew Weaver Jr.'s abandoned car is found on a remote road in the Santa Monica mountains. But where is Matthew? The police think suicide, but Matthew's sister and step-mom smell foul play and hire private investigators. Everyone has a theory. Was Matthew embroiled in a gang dispute? Was it a romantic entanglement? Or did he get too close to something he wasn't supposed to see?

Investigators retrace Kelley Brannon's last days. The questions they must answer: Was she abducted by a stranger in the night? Did she befriend someone at the local bar who harbored bad intentions? Or did her boyfriend, with whom she had a stormy relationship, play a role in her disappearance?

After an angry fight with her boyfriend, Kelley Brannon paces a motel parking lot, refusing to return to the room. Waking alone at dawn, her boyfriend listens to a voicemail, her last trace, as she signs off "I am getting in a car." Whose car and where she went have haunted him ever since. But her friends and family are not so sure he's innocent. Was it him or was she abducted? Or did she ghost him and run away to reinvent her life?

Wisconsin grandmother Sandy Eckert disappears in the middle of the night. Does her husband know more than he's letting on?

Susan Walsh is a devoted mother working on a career in journalism but supporting herself as an exotic dancer. So when she disappears, there is no shortage of suspects. She has published an article exposing a cult of wannabe vampires living in Manhattan.

19-year old Dylan Rounds goes missing without a trace from his farm in remote northwest Utah. Then Dylan's gun reappears mysteriously in his camper.

Irene Gakwa comes to America from Kenya to join her brothers and become a nurse. When she disappears, her American dream becomes her family's nightmare.

27-year-old Pepita Redhair is last seen by her mother after she drops her off at Pepita's boyfriend's house. Did she just run away, or is she the victim of something much more sinister?

The sudden disappearance of Ali Gilmore sparks the biggest missing person investigation in Tallahassee history. A college graduate who holds down two jobs, she has been a role model for her younger sister. But investigators uncover a troubled marriage, a sketchy boyfriend and an unplanned pregnancy.

After 15-year-old Kristen Galvan disappears, Houston police pick her up and say she may have been trafficked. She's recovering when she vanishes again.

With no sign of Dylan, wild theories abound. Then attention begins to focus on the strange old man squatting in a shed a few miles from Dylan's farm.

Transgender indigenous woman Aubrey Dameron vanishes in the middle of the night. Shocking theories emerge as her aunt and uncle search for answers.

When 14-year-old Max DeVries vanishes on a jet ski ride with a fellow vacationer in Aruba, authorities label it an accident. But is the truth much darker?

Chelsea Cobo leaves a psych hospital in Westchester, New York, and calls her mom to say she's grabbing food before coming home. Her mother never hears from her again. Did Chelsea simply run away, or is there something more sinister involved?

For 25 years, friends and family have speculated about what happened to Susan Walsh, an ambitious young mother building a career in journalism who worked as an exotic dancer at night. Part 2 of this compelling tale, takes a closer look at the rogue's gallery of suspects

She thought she'd found the right man, a good step-father to her children. But her girlfriend says that before she and a teenage son vanished into thin air, Susan made a startling discovery about her second husband. Did it cost her life? Police say he replaced the floors, burned their mattress, and the house smelled of bleach. What they can't find-are bodies.

Caleb Diehl's disappearance triggers an investigation that brings in local police, the DA and the FBI. The Diehl family is stunned by revelations that a close friend, who is a prominent local banker, has been implicated in financial fraud and is rumored to have unsavory predilections for the teenage boys he employs on his ranch. One of them was Caleb Diehl who has vanished without a trace.

Echo Lloyd moves to a remote part of the Ozarks to be alone. When she vanishes, suspicion falls on her odd neighbor - and on her own daughter.

When 14-year-old Justin Rutter doesn't come home one night, his family panics. Police think he's a runaway, but evidence suggests something more sinister.