After the body of wealthy Richard Hodges is found along the Missouri River, police find his mother has been killed inside their home; as detectives get to work, they wonder if a secret in Hodges' life might have been behind the murders.
Twenty-three-year-old Navy veteran Raul Mendoza is found murdered after a night out in Houston, and police get a tip from Mendoza's sister pointing to someone they have met before.
In Oklahoma, the body of 18-year-old Jarret Clark is found floating in a lake, bringing a party in the woods to a tragic end; agents interview campers and come across a key witness.
The body of 18-year-old Tina Hendricks is found floating in a Florida canal.
After 32-year-old Mark Mueller's body is pulled from the shore of Lake Michigan, police wonder how his favorite fishing spot became a scene for murder; a burned-out car found miles away provides some answers.
After the body of 18-year-old Sharyn Kills Back is found in a storm drain, Arlington, Texas, detectives are left with few leads; then, a tip comes in 20 years later, and detectives band together to bring her killer to justice.
After 30-year-old Lloyd Tobin is gunned down on a lakefront beach in Texas, his family launches their own investigation to help police solve the case; then, more than 20 years later, closure comes from a surprising source.
The lives of two Georgia teenagers are lost after shots ring out on a remote Florida beach; even with officers from two jurisdictions on the case, leads are scarce, then an unexpected call comes in and promises swift resolution.
Twenty-two-year-old mother Shawn Williams heads to the store late one night and never comes home, then her body is found the following day along an Oklahoma river; investigators wonder if one of the men in Williams' life might be her killer.
In Sheffield, Ala., 36-year-old Kimra Riley heads to a bar looking for fun but finds something far more sinister; later,. her body is found on the banks of the Tennessee River.
A judge discovers the body of 22-year-old Misty Morse, bound and floating in the marshy waters of Florida's Indian River.
Police retrace the final steps of single mother Mary Stetson after her torso washes up on the shore of New Hampshire's Piscataquog River.
Jody Lynn Wolfe's body washes up on the banks of Dry Creek Canal in Fresno, Calif., and detectives learn more about the young teenager's life during the course of their investigation and realize her murder hits close to home.
Fifteen-year-old Linda Strait fails to return home after a trip to the store, then her body is found near the Spokane River, and detectives will spend the rest of their careers searching for Strait's killer.
After 53-year-old Barbara Hefner disappears from her Georgia residence, her body is found floating in nearby Folly Lake; during the investigation, police officers uncover a a recent inheritance and a secret affair.
The body of 39-year-old Beverly Jackson is found in a car pulled from a Florida canal; the police explore the single mother's routine and relationships, but it will take the help of a hotline tipster to track down her killer.
After a baby is found abandoned along Ohio's Scioto River, police discover the child's mother has been murdered, and then they uncover secrets about someone in the young mother's past while investigating the case.
Nineteen-year-old Raquel Rayas is found bleeding to death along California's Deep Creek Spillway, then she dies before detectives can learn anything from her, and they turn to a mysterious telephone number for help.
Near Asheville, N.C., a young mother is stabbed four times in the chest and left for dead in the French Broad River, but she survives long enough to seek out help and to leave a cryptic clue for detectives.
In Beaumont, Texas, a young woman goes missing from a broken-down car while waiting for her husband's return; the nearby Big Thicket Swamp may hold the answer to her disappearance.
A Lakota teenager disappears from the town of Mobridge, S.D., causing racial tensions to erupt; when her body is found in the shallows of the Missouri River, detectives are confounded on both sides of the divide.
In Crox Springs, La., a young woman disappears from the parking lot of a roadhouse, and her frantic boyfriend suspects she has reconnected with an old flame with deadly consequences.
In Albany, N.Y., a young woman disappears after storming out of the house to find her wayward boyfriend, then her body is found on the banks of the Hudson River.
Kathy Stewart, a 47-year-old mother, goes missing in the morning and is later found murdered in a nearby creek.
A U.S. Army medic enjoys a night out at a dive bar near Fort Bragg, N.C., but she never makes it home; police cannot figure out what happened to her even after dogs pick up her scent in a nearby swamp.
A college student is eager to drive home to see her parents but never makes it there, then her body surfaces in the Oconee River, and detectives come to realize someone has been lying to them.
A young woman leaves home to join a Goth community in Manchester, N.H., then something truly sinister happens when she disappears from a roadside bar.
The investigation into a missing mother of four leads police to uncover a two-faced killer with a double life.
Sixteen years pass before teenager Krystal Baker's killer is brought to justice.
Minister Kenneth Richardson is found dead with an arrow through his body.
A mother of two is found in a swampy overgrowth and officials fins a web of romance and friendship that turned to murder.
More than 40 years after a 14-year-old is raped and strangled near an orange grove, the killer is identified.
When 21-year-old Angela Crowley's body turns up on the banks of a canal, detectives discover shocking secrets about her friends and boyfriends as they seek to find out who stalked and killed the young woman.
After the headless body of Beverly McGowan turns up on the shores of the Everglades, police initiate a 12-year manhunt for the elusive killer.
The body of 15-year-old Allison Tornensis washes ashore on the Little Quil River, leaving residents of her small town asking who murdered her.
When Kathy Goble doesn't show up for work, co-workers and family know something's up, but they aren't sure what.
Nineteen-year-old Kathy Bonney fails to return home, then her body is pulled from the Great Dismal Swamp in Virginia.
Alabama teenager Edith McElroy rebels against her conservative upbringing by marrying the leader of a biker crew, then her nude body is found in a Louisiana waterway and sparks a mystery that will endure for 32 years.
A Missouri bank is robbed and the bank president is missing.
In Texas, a wife files a missing person's report after her husband Bobby doesn't come home one evening.
When a dependable 16-year-old girl misses her curfew, her family knows something is wrong.