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 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.

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 19-year-old Kathy Bonney, model daughter, fails to return home, concerned father Tom Bonney turns to police. That same day, her body is pulled from Virginia’s Great Dismal Swamp. Turns out, Kathy wasn’t as angelic as her family was led to believe.

When two women are discovered in the depths of Georgia's Flint River, detectives wonder if a serial killer is afoot. But when they connect the two victims, investigators follow their lead to the discovery of two more corpses, and a whole slew of betrayal.

Alabama teen Edith McLeroy rebels against her conservative upbringing marrying the leader of a biker crew, cruising the highways as queen of the pack. But when her body is found in Louisiana, a mystery is sparked that will end up lasting 32 years.

In Noel, Missouri, a bank is robbed of $71,000 and the bank president, Dan Short, is nowhere to be found. Could Short have robbed his own bank? Five days later, a body is found in the swampy shallows of the Great Lake o' the Cherokees.

Bobby and Patricia Sexton have three daughters and live on her grandparent's property in Jacksonville, Texas. But when Bobby doesn't come home one evening, his worried wife, Patricia, files a missing person's report.

16-year-old Carol Hutto is a dependable friend, daughter and sister. She's a good student, loves wrestling and hanging out with friends. So when she misses her curfew one evening, her mother knows something awful has happened.

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.

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.

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.

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. 

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.

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.

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.

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.

On the morning of her 50th birthday, a woman is found face-down in Suqualena Creek near Meridian, MS, apparently drowned. But it's no accident. Her daughter and her best friend are distraught, but as detectives learn, both are hiding secrets.

A young woman's night of partying at a roadhouse in Krotz Springs, LA, takes a sinister turn when she vanishes from the parking lot. Her desperate boyfriend suspects she made a deadly connection with an old flame -- and the nearby Atchafalaya Swamp.

In Albany, NY, a young woman storms out of the house to track down her wayward boyfriend and disappears into the night. When her body is found washed up on the mucky banks of the Hudson River, detectives realize they have a killer on the loose.

When the Stewart family wakes up one morning, their 47-year-old mom, Kathy, is nowhere to be found. The last they knew, she went for a walk in downtown Ava, MO. But when her murdered body is found in nearby Cowskin Creek, the town erupts in fear.

While her husband is away, a vivacious Army medic enjoys a night out at a dive bar near Fort Bragg, NC. But she never makes it home. And though dogs pick up her scent in a nearby swamp, her fate baffles police -- until a local P.I. takes up the case.

A Marietta, GA, co-ed is eager to make the five-hour drive home to see her parents. But she never gets there. Her friends and coworkers have no answers, and when her body surfaces in the Oconee River, detectives realize that one of them is lying.