20-year old Bear Diaz has diabetes, leaving him weak and vulnerable. When he vanishes in the night with his TV, backpack and cash, investigators must consider foul play. Then Skylar Tosic disappears, leaving people wondering if the cases are linked.

Kortne Stouffer, 21, vanishes from her bed one night following a couple of scuffles with neighbors and friends. Investigators pursue various leads, but the young beauty is nowhere to be found, and her family clings to an endless hope.

When Macin Smith, 17, doesn't come home from school, his parents worry is he in danger? A note hidden in his wallet leaves his family troubled. And police attempt to piece together the puzzle, while his family vacillates between hope and despair.

A Bible-teaching mom takes a midnight walk and never comes home. But a mysterious note suggests frightening possibilities.

When recent college graduate Jennifer Kesse doesn't show up for work, her friends and family know something is wrong. Their worst fears are realized after her car is found empty and abandoned a mile from her apartment. Police immediately investigate the dozens of construction workers who are building Kesse's apartment complex at that time, however no clear suspect emerges. Almost a decade later, this mysterious case continues to baffle law enforcement and haunt her family.

Former Harlem Globetrotter Rico Harris is driving from LA to Seattle to move in with his fiancée, Jennifer Song. The 37-year old is in constant contact with Song and his mother from the road but, after he mentions a detour into the mountains, all communication ceases.

Brian Histand, a 25-year-old BMX rider, was last seen wandering a field in southern Phoenix. As family and friends search, they learn of Brian's disconcerting behavior in his final days. Have Brian's risky bike moves led to his state of confusion?

60-year-old stonemason, David Riemens, has one final meeting before driving to visit family. He never returns home, and his truck is found abandoned. Desperate to find him, investigators look for clues, but David has vanished into thin air.

37-year-old nurse Tammy Kingery, suffers a mysterious illness and is bed-ridden at home. One day, when her husband and children leave to run errands, they return to discover that Kingery has disappeared. The investigation will reveal dark secrets that lead to all kinds of theories about what happened to Tammy.

When 19-year-old college student Bryce Laspisa heads south to visit his parents in Orange County, CA, what should've been a quick five-hour drive down the freeway turns into a 20-hour expedition. Laspisa is in constant contact with his parents from the road, but he's behaving mysteriously. When his car is found crashed and abandoned in a remote desert park, investigators begin a desperate search for clues into Laspisa’s disappearance.

25-year-old artist Tiffany Daniels is a spontaneous free spirit, but when she doesn't return home from work for days, her brand new roommate grows alarmed. When her car is found abandoned in a beachside parking lot, it’s a desperate race against the clock for any sign of Tiffany.

Jessica Heeringa works the night shift at a gas station to help support her 3-year-old son and fiancé. One evening a customer arrives to find the store empty and the cash drawer left open, investigators find themselves in a race against time to locate the missing 25-year-old mom.

More mysteries are revealed in Kelly's disappearance when video footage of him at a gas station, hours before he disappeared, show him as his normal happy self.

Lauryn Garrett's parents talk about what kind of person she is as well as how her disappearance affected them.

Charli Scott was last seen on a treacherous road, her friends and family fear there's been an accident. But as pieces of evidence surface, the mystery heightens.

Investigator Gary Micco travels with Charli's step-father to check out the site where Chari's burnt out car is located, and all the clues don't seem to be adding up to finding Charli.

Back country ranger Randy Morgenson was the go to person if someone was lost or missing in Sequoia Kings Canyon National Park, until the day he vanishes. Colleagues search for him in dangerous terrain uncovering unsettling secrets. What happened ...

Julie died of antifreeze poisoning, and the police are suspicious of her husband.

The police are trying to narrow down the suspect list for Bill McLaughlin's murder and wonder, was the dead man's son responsible?

24-year-old Vietnamese-American Thien Minh Ly is found stabbed on the Tustin High School tennis courts and police think his strange friend Craig is a suspect.

27-year-old Jarrod Davidson is shot dead outside his apartment in Santa Barbara, California. Next to him is a suspicious potted plant. He was in the middle of a nasty custody dispute but the DNA doesn't match his ex-wife. So who killed him?

After her husband dies suddenly, a woman becomes the relentless target of her overly flirtatious neighbor. When her brother moves in to protect her, he's put on a collision course with the neighbor that will only be resolved with bloodshed.

Neighbors go to war when an older man obssesses over the boundary lines of his property and wont let his neighbors anywhere near it.

Get a sneak peek and watch original audio and video footage that was recorded during the neighbor disputes. The all-new series premieres Monday, April 14th at 10/9c. Only on Investigation Discovery.

In the rolling hills of Lenoir, North Carolina, retired Vietnam veteran Roland Younce sells off a patch of his land to Tony Moore and his young family to build their forever home on. Unfortunately, things turn ugly.

In peaceful Alden, New York, Helena Sindrewicz and husband David Ward have built the house of their dreams right beside Sindrewicz’s childhood home. Her brother Andrew still lives in the family home where he tends their ailing mother, Anneliese. All is well between the neighboring siblings until their other brother, Raymond, returns after many years away and moves in with Sindrewicz. Old tensions and grudges erupt between the brothers, and things get ugly, threatening, even physical. When Sindrewicz finally decides to sell the family home out from under Andrew, he brings their civil war to a shocking, fiery conclusion.

Two neighboring Omaha mothers turn from friends to foes in a vicious spat. Allegations of harassment, vandalism, assault and even child neglect are filed, but without evidence the police can do very little to extinguish the hatred simmering betwe ...

An industrious woman and an ambitious man become neighbors when they buy adjoining houses. Both intend to restore the derelict homes to former glory, but when one of the renovations falls badly behind, it leads to conflict and a shocking murder.

A man explodes furiously on a neighbor who tried to let herself into his house at 1am, with a man, claiming she had sinister motives in mind. The confrontation soon turns ugly.

The Phillips' family moves to a quiet seafront town in Maine to escape a crime wave in Indiana. But their dream home comes with a not so dreamy ex-military neighbor named Richard Uffelman.

A couple who tragically lost their son are thrilled when a family with two boys moves in across the street. But the relationship soon sours, engulfing all of them in conflict, accusation, and finally a deadly shooting.

A family's life becomes hell when their creepy and reclusive neighbor keeps making untrue claims against them, with the legal actions stacking up it wont be long before they snap.