When the first victim is found dead in his kitchen with a mysterious number and message on his forehead, FBI Agent Victoria Heslin knows this is no ordinary hit job. It’s also just the beginning. As she follows the leads, calls start coming in—more dead bodies across D.C. and Virginia, each with a different message. With no common denominator connecting the victims, Victoria fears anyone might be next. Then the killer leaves a personal note for Victoria, making clear she isn’t just investigating the case, she’s part of the equation.

When a private plane whisks CDC epidemiologist Madeline Hamilton to Washington, DC, for an urgent medical symposium, she knows something significant is underway - but she doesn’t expect to face the most disturbing medical mystery of her career. A debilitating neurological toxin has stricken the children of several political families, and one of them is the son of US President Anna Moreland.

In Los Angeles, FBI counterterrorism agent Quinn Traynor receives an urgent call from CDC agent Madeline Hamilton. She’s discovered the first victim of a lethal, unfamiliar virus. Their joint investigation uncovers an imminent bio-terror attack, and their only hope is to identify the terrorists carrying the disease. With just two days remaining before it’s too late, the FBI and the CDC race to prevent a pandemic. The ensuing nightmare will hit closer to home than they ever anticipated, and one of them will pay an unimaginable price for protecting the country.

Beautiful and brilliant Brooke, a transfer student with a mysterious past, aims to graduate first in her class at Everett and attend medical school. Her classmates and professors are captivated by her achievements and appearance. Only Jessica, a wealthy socialite fueled by prescription pills and a huge case of snobbery, senses there's something not quite right about the perfect student. What happens during a historic blizzard will settle their differences once and for all.

The beautiful young woman is perfectly still, curled up in the trunk of the car, her long dark hair hiding her face. Her cotton blouse has ridden up a little, revealing two small dots an inch apart on her back. Just like the others. Guilt has kept FBI Agent Tori Hunter away from her home in Manchester Bay, Minnesota for 20 years, ever since her twin sister disappeared on the Fourth of July, when the girls should have been together. But when she receives an anonymous newspaper clipping about another missing girl, Genevieve, Tori is dragged back to the past.

It’s been five years since Detective Amanda Steele’s life was derailed by the tragic death of her young daughter. The small community of Dumfries, Virginia, may have moved on, but Amanda cannot. When the man who killed Lindsey is found murdered, she can’t keep away from the case.

When a man is shot in the head, Bree Taggert and her new partner, veteran detective Dana Romano, respond to the call. They break the news to the victim’s ex-wife and learn the estranged couple’s five-year-old daughter was supposed to have been with him. What starts as a murder investigation quickly morphs into a desperate search for a missing child. The case stirs memories of Bree’s own traumatizing childhood. To find the little girl, Bree will have to relive her own terrifying past.

When secretary Annie Parkes is snatched from the street outside of her workplace, David Kane is tasked with finding her. Strong, highly skilled, and secretive, he’s a loner and an outsider; the only man the military trust to find Annie before her kidnappers make good on their promise to kill her. But as Kane pulls Annie from a derelict building, gunshots ringing through the deserted streets around them, he realizes rescuing her is just the beginning. He needs to keep her close to find out who is behind her capture, and to keep her safe.

In the remote forests of Stillwater, Minnesota, you can scream for days and no one will hear you. So when the bodies of two 15-year-old girls are discovered frozen in the snow, Special Agent Nikki Hunt is sure the killer is local: Someone knew where to hide the girls and thought they would never be found. Though Nikki hasn’t been home in 20 years, she knows she must take over the case.

An eight-year-old girl, Chelsea Compton, is missing in Pine Valley, California, and for Detective Katie Scott it’s a cruel reminder of the friend who disappeared from summer camp 20 years ago. Unable to shake the memories, Katie vows she won’t rest until she discovers what happened to Chelsea. But as Katie starts to investigate, the case reveals itself to be much bigger and more shocking than she feared. Hidden deep in the forest she unearths a makeshift cemetery: a row of graves, each with a brightly colored teddy bear.

When Detective Madison Harper arrives at a remote summer camp in Shadow Falls, Northern California, her heart breaks for Jenny, the sweet little girl last seen splashing in the lake with her friends before she vanished. Peering into the silent cabins filled with rows of neatly made beds, Madison knows this idyllic place is hiding a terrible secret.

It was Beth Katz’s serial killer father who made her like she is: a successful FBI agent and an unstoppable vigilante dedicated to hunting down murderers who have evaded capture. Beth will push herself to the limits to deliver justice. Even if it means killing those who deserve to die.

Lane McCord wakes up in a hospital having survived a near-fatal fall at a North Carolina beach cottage. Her boyfriend, Kyle, wasn’t so lucky. A senseless tragedy on their first romantic getaway. All Lane remembers is lying at the bottom of the stairs in Kyle’s pooling blood. Confused and grieving, Lane plans to return to the cottage, collect her personal belongings, and get out. Until a winter rainstorm leaves her stranded and vulnerable, but not alone. A concerned neighbor, who claims he heard a violent argument before the accident, has come out of the storm.

Twenty years ago Emily Mills's father was murdered, and she found his body hanging in the backyard. Her younger sister, Madison, claims she was asleep in her room. Her older sister, Tara, claims she was out with friends. The tragedy drove their mother to suicide and Tara to leave town forever. The killer was caught. The case closed. Ever since, Emily and Madison have tried to forget what happened that night - until an eerily similar murder brings it all back.

Lieutenant Abby Mullen is no stranger to crisis. As the hostage negotiation instructor for the NYPD, she deals with worst-case scenarios every day. Nothing fazes her anymore. That all changes when she gets a call from Eden Fletcher, a fellow survivor of the infamous Wilcox cult. The two haven’t spoken since the night of a tragic, fiery massacre, when their paths diverged. But now Eden needs Abby’s help: someone has kidnapped her son and is demanding a $5 million ransom. As Abby throws herself into the case, she can’t help but wonder why the kidnapper has targeted Eden.