Ex-police officer Rileigh Bishop never wanted to come back to her hometown. But when a body is found dead with her tongue cut out, she must return. After all, that's the same way Rileigh's sister died. Reluctantly, she joins forces with the county sheriff to solve the brutal murder. The locals maintain a strict code of silence. The narrow mountain roads winding through Appalachia are fraught with peril. As Rileigh dives deeper into the case, she not only unearths connections between this murder and her sister's death but also dark family secrets. Secrets that should've remained buried.

When Penny Matthews, a seven-year-old girl with blonde curls and a gap-toothed smile, goes missing in the Appalachian mountains, Detective Ellie Reeves is called straight to the scene. According to Penny’s parents, their daughter vanished after a picnic by the creek. All that’s left behind is a pink friendship bracelet etched with “Penny”.

After a series of tragedies turned her world upside down, FBI Agent Spenser Song felt like a woman adrift in a sea of chaos. Her brush with death and the tragic murder of her husband left her questioning everything in her life. And when it became clear that Bureau politics will trump justice, Spenser realized she needed a fresh start.

Former NSA agent Eve Wicker has faced many hardships and tragedies in life. Needing to be closer to her ailing father, Eve takes a position as her hometown Sheriff. A position she never imagined would open many old wounds from her past. When she receives a phone call about a body in the woods, She drives up to the crime scene. There, she grabs the attention of the town’s mountain recluse. Roman Pike, a big burly ex-marine who’s as abrasive as he is brash.

Following the incident that brought justice to her parents’ killers but ended her career, former FBI Special Agent Rebecca West needs a fresh start. Hoping to find peace, she decides to spend a few months in the sleepy beach town of Shadow Island, where she spent idyllic summers as a kid. However, her vacation is cut short when a seventeen-year-old goes missing with no leads or clues. When the girl’s body is found in a nearby marsh with strangulation marks around her neck, Rebecca can’t say no when the overworked sheriff asks her to help investigate.

When Detective Casey White discovers the body of a beautiful teenage girl in a white nightgown near the shoreline in North Carolina’s Outer Banks, a familiar fear floods through her. Could this be Hannah, her sweet, blue-eyed daughter snatched from home 14 years ago? But it only takes one look to confirm that the girl with dark bruising around her throat is another family’s tragedy. Putting her own grief aside, Casey digs into unsolved missing child cases in the area. The victim is Cheryl Parry, one of two little girls taken during a family beach vacation nine years ago.

FBI Agent Emma Griffin is sent undercover to the small sleepy town of Feathered Nest to uncover the truth behind the strings of disappearances that has left the town terrified. To Emma, there is nothing that can lay buried forever. Even though her own childhood has been plagued by deaths and disappearances.

Everyone in the small town of Denton is searching for Isabelle Coleman, a missing 17-year-old girl. All they've found so far is her phone and another girl they didn't even know was missing. Mute and completely unresponsive to the world around her, it's clear this mysterious girl has been damaged beyond repair. All Detective Josie Quinn can get from her is a name: Ramona. Currently suspended from the force for misconduct, Josie takes matters into her own hands as the name leads her to evidence linking the two girls.

FBI Agent Gardner Camden is an analytical genius with an affinity for puzzles. He also has a blind spot on the human side of investigations, a blindness that sometimes even includes people in his own life, like his beloved seven-year-old daughter Camila. Gardner and his squad of brilliant yet quirky agents make up the Patterns and Recognition (PAR) unit, the FBI’s hidden edge, brought in for cases that no one else can solve. When DNA links a murder victim to a serial killer long presumed dead, the team springs into action.

Thomas Austin was once a prominent NYPD detective, known for locking up a psychopathic serial killer dubbed "The Holiday Baby Butcher". Now retired in a small beach town in the Pacific Northwest, Austin runs a little café, trying to overcome the loss of his wife, a DA who was gunned down only one year ago.