Outside Asheville, NC, a young mother is stabbed four times in the chest and left for dead in the French Broad River. But she lives long enough to seek out help -- and leave a cryptic clue for detectives.

When the body of a teenage girl is found dumped on the muddy banks of the Trinity River, Texas police identify her as 13-year-old Krystal Baker. Yet, sixteen years pass before Krystal's killer is brought to justice.

When their car breaks down at the mall in Beaumont, TX, a young husband tells his wife to wait while he fetches their other ride. But when he returns minutes later -- she's mysteriously vanished. Does the nearby Big Thicket Swamp hold the answers?

When a Lakota teen disappears after a night out in the mostly white town of Mobridge, SD, deep racial tensions erupt. And after her body is found in the mucky shallows of the Missouri River, detectives are stonewalled on both sides of the divide.

Kimra Riley heads to a Sheffield, Alabama, bar looking for fun and soon finds something far more sinister. Two months later, her body is found tangled up on the banks of the Tennessee River. 

When shots ring out on a remote Florida beach, officers are devastated to learn the lives of two Georgia teens have been lost. Even with two jurisdictions on the case, leads are scarce. Until an unexpected call comes in and promises swift resolution.

14-year-old Gina Marie Justi's body is discovered in a marsh near an orange grove, brutally raped and strangled. What follows is four decades of a game of cat and mouse.

Angela Crowley's body turns up partially clothed and strangled on the murky banks of the Cross Florida Barge Canal. Detectives discover shocking secrets as they unravel the mystery of who stalked and killed the innocent 21-year-old.

A party in the woods ends in tragedy when the body of 18-year-old Jarret Clark is found floating in a lake. With many people camping in the Oklahoma wilderness that night, it's only a matter of time before agents come across a key witness to the crime.

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. It's not until his burned-out car is found miles away that officers finally get some answers.

A submerged car pulled from a Florida canal brings a startling discovery: the body of 39-year-old Beverly Jackson. Police explore the single mom’s work route and relationships, but it will take the help of a hotline tipster to track down her killer.

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. More than 20 years later, closure comes from a surprising source.

Heather Strong is a responsible mother of two. Detectives find her body rotting in a swampy overgrowth, and the investigation that follows untangles a web of romance and friendship that led to obsession, betrayal and ultimately murder.

Bill, Nancy, and her 8-year-old daughter, Sarah, live a happy life in the Arkansas Ozarks. So when their bodies are pulled from the dark, murky waters of the Illinois Bayou, police are devastated by the sight of them.

The headless body of 34-year-old Beverly McGowan turns up near the swampy shores of the Everglades. The murder takes detectives on a 12-year manhunt for an elusive and ruthless suspect.

After 53-year-old Barbara Hefner disappears from her remote Georgia residence, her body is found floating in nearby Folly Lake. On the hunt for her killer, officers uncover a recent inheritance and secret affair before ultimately bringing justice home.

Kenneth Richardson is an Indiana family man and an evangelist minister who knows the Bible by heart. When his body is found on the grimy banks of a Florida boat ramp in August 2001, detectives discover an arrow was the weapon of choice. 

After a baby is found abandoned along Ohio's Scioto River, police discover the child's mother has been tragically murdered. Out to bring justice to 21-year-old Stephanie Evan's family, officers uncover secrets about someone in the young mom's past.

When the body of former beauty queen Jackie Johns is found floating in Missouri's Lake Springfield, her small town is left up in arms. But as officers dig deeper into Jackie's list of admirers, they soon discover the fine line between love and hate.

When the body of 20-year-old transgender woman CeCe Dove is found floating in a suburban pond 20 miles from her Cleveland home, detectives consider motives personal and primal as they hunt down her ruthless killer.

When Andrea White suddenly disappears in Florida, leaving her four children behind, her concerned friends and family contact the police. As detectives investigate, they uncover a twisted, two-faced killer with a double life.

15-year-old Allison Tornensis is a teenager from the small town of Quilcene, Washington. In the summer of 1992, her body washes up on the murky shores of the Little Quil River.

Kathy Goble is a beloved mother of two and popular saleswoman at a high-end men's store in Charleston, West Virginia. When she doesn’t show up to work on a spring day in 2010, her co-workers and family know something's up.

When the torso of single mother Mary Stetson washes up along New Hampshire's Piscataquog River, police retrace her final steps. But every place along Mary's path presents new mysteries, and people who aren't as innocent as they first appear.

After the body of wealthy Richard Hodges is found along the Missouri River, police find his mother has also been killed inside their home. As detectives get to work, they wonder if a secret in Richard's life might have been behind the murders.