When a young girl is found dead in the mountains outside Timber Creek, lifelong resident Officer Mattie Cobb and her partner, K-9 police dog Robo, are assigned to the case that has rocked the small Colorado town. With the help of Cole Walker, a local veterinarian and single father, Mattie and Robo must track down the truth before it claims another victim. But the more Mattie investigates, the more she realizes how many secrets her town holds. And the key may be Cole's daughter, who knows more than she's saying.

After their last deployment, when she got shot, her fiancé, Martinez, got killed, and his bomb-sniffing dog, Elvis, got depressed, soldier Mercy Carr and Elvis were both sent home, her late lover’s last words ringing in her ears: “Take care of my partner.” On the Fourth of July weekend, when all of Northshire celebrates with fun and frolic and fireworks, the dog alerts to explosives and they find a squalling baby abandoned near a shallow grave filled with what appear to be human bones.

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.

When the body of a woman is found hanging from a tree in her front garden, rookie Detective Morgan Brookes is first on the scene. But Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them. Lying huddled together in the dark basement, each of their faces covered with a small cotton cloth, their bodies cold to the touch. But as Morgan kneels beside the family, she realizes that one of the girls is still breathing.

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.

Crimebusting duo DI Jackman and DS Evans are back, solving another crime that will make your skin crawl. Twenty years ago: a farmer and his wife are cut to pieces by a ruthless serial killer. Now: a woman is viciously stabbed to death in the upmarket kitchen of her beautiful house on the edge of the marshes. Then a man called Daniel Kinder walks into Saltern police station and confesses to the murder. But DI Rowan Jackman and DS Marie Evans of the Fenland Constabulary soon discover that there is a lot more to Daniel than meets the eye.

Crack CIA analyst Trista Gold is a whiz with the computer, but not so much with people. She hides behind her job, analyzing top-secret code and making recommendations on national security. CIA K-9 officer Sgt. Matt Connors suspects that beneath Trista's uptight appearance, there's a sexy woman itching to cut loose. But he doesn't dare act on his attraction. He's a loner and always will be. Keeping away from Trista is a must-do directive. Until he doesn't have a choice. During a routine assignment, Trista stumbles across a cryptic exchange. Then someone tries to murder her - twice.

Recently engaged and deeply ensconced in her third year of surgical residency in Chicago, Emily Hartford gets a shock when she is called home to Freeport, Michigan, the small town she fled a decade ago after the death of her mother. Her estranged father, the local medical examiner, has had a massive heart attack. At the hospital, she finds her father in near total denial of the seriousness of his condition. He insists that the best thing Emily can do to help him is to take on the autopsy of a senator's teen daughter whose sudden, unexplained death has just rocked the sleepy town.

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.

When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.

DI Nikki Galena: A police detective with nothing left to lose, she's seen a girl die in her arms, and her daughter will never leave the hospital again. She's gotten tough on the criminals she believes did this to her. Too tough. And now she's been given one final warning: make it work with her new sergeant, DS Joseph Easter, or she's out.

In the wake of a devastating hurricane, Special Agent Meg Jennings and her Labrador, Hawk - invaluable members of the FBI’s Human Scent Evidence Team - have been deployed to Virginia Beach. They have their work cut out for them. Amid graveyards of debris, and the buried cries for help, the search and rescue operation begins. The most alarming discovery is yet to come - a teenage girl hiding in the Great Dismal Swamp. Shaken by the storm, she has reason to be scared. But this young survivor is terrified of so much more.

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.

When a young boy discovers the body of a woman beneath a thick sheet of ice in a South London park, Detective Erika Foster is called in to lead the murder investigation. The victim, a beautiful young socialite, appeared to have the perfect life. Yet when Erika begins to dig deeper, she starts to connect the dots between the murder and the killings of three prostitutes, all found strangled, hands bound, and dumped in water around London.

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.