It’s tough working nights with the NYPD. The crime rate is high, the hours are terrible, and forget about a personal life. So, when Officer O’Reilly and her K-9 Rolf switch over to the day shift, things look up. She’s even able to find time for a new boyfriend. But when the theft of a priceless painting from the Queens Museum leaves a fellow police officer dead, Erin and her four-legged partner find themselves dealing with dangerous criminals, sleazy art dealers, and obstructive detectives in a race to capture the killers...and just maybe bring closure to a 75-year-old crime.

Caitlyn Reed and her dog, Renegade, are thrown into the midst of murder and intrigue when they discover a dead body while on a trail ride in the black hills of Wyoming. The local sheriff is hell-bent on a conviction, and Caitlyn’s brother, Dylan, is in his crosshairs. Desperate to prove his innocence, Caitlyn turns to Deputy Colt Branson for help, but she must grapple with their rocky romantic past to gain his aid. As Caitlyn and Renegade pursue the killer, the investigation catapults their lives in a dangerous new direction.

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.

Meg and Hawk are part of the FBI's elite K-9 unit. Hawk can sniff out bodies anywhere - living or dead - whether it's tracking a criminal or finding a missing person. When a bomb rips apart a government building on the National Mall in Washington, D.C., it takes all of the team's extensive search-and-rescue training to locate and save the workers and visitors buried beneath the rubble.

Call it a premonition. Call it intuition. Call it anything you like, but Pennsylvania State Trooper Jerry McNeal simply thinks of it as “that feeling.” That feeling may come on without warning, so intense he can’t breathe.

Corey Douglas and his K-9 partner, Simon Garfunkel, have recently retired from the police force. Not ready to give up the life yet, they come up with a proposal for fellow former cop, Laurie Carpenter, and her investigating partner, Marcus. They call themselves the K Team, in honor of Simon. Their first job as private investigators comes to them from Judge Henry Henderson, who's known as a very tough but fair judge, and they've all come up against him in court at one time or another. Though it's hard to believe, Judge Henderson is being blackmailed and extorted.

Whether dueling with new forensics or the local old boys' network, irreverent defense attorney Andy Carpenter always leaves them awed with his biting wit and winning fourth-quarter game plan. But the fun stops the day Andy's dad, Paterson, New Jersey's legendary ex-DA, drops dead in front of him at a game in Yankee Stadium.

As a native of the small town of Hansonville, North Carolina,and a wilderness rescue worker, Raine Stockton knows the Smoky Mountains as well as anyone could, but she gave up her Search and Rescue work after a tragic loss. Now she reluctantly returns to active duty to help find a young child who has been kidnapped and taken deep into the forest.

Mason "Mace" Reid lives on the outskirts of Chicago and specializes in human-remains detection. He trains dogs to hunt for the dead. Reid’s coming off a taxing year - mourning the death of a beloved springer spaniel as well as the dissolution of his marriage. He adopts a rescue dog with a mysterious past - a golden retriever named Vira. And when Reid begins training Vira as a cadaver dog, he comes to realize just how special the newest addition to his family truly is....

It should have been a routine investigation. Instead, DEA K-9 agent Adam "Deck" Decker watches in horror as one Denver hospital seems to be ground zero for overdoses of a new drug. Now Deck can only hope a certain ER doctor will help him and his canine partner track down the source. Dr. Tori Sampson has her reasons for not trusting federal agents, especially ones working for the DEA. But the rash of overdoses—including a heartbreaking case involving a teen—is alarmingly high. And the new opioid is not only extremely dangerous, it defies all the usual medical treatments.

When teenage sisters go missing in the mysterious "Bennington Triangle" of Vermont, an area renowned for its disappearances and strange occurrences over the past 100 years, FBI agent Jack Juarez brings K-9 handler Jamie Flint and her dog Phantom in to assist with the search. When Jack realizes the case shares haunting similarities with the murders of the missing girls' aunts 10 years before, it becomes clear that he and Jamie are dealing with much more than two girls who simply wandered off the beaten path.

While hiking in the foothills of the Rocky Mountains, FBI Special Agent Kendra Dean and her K9 partner, Baxter, stumble upon a dead body stashed in the woods. The discovery changes both of their lives forever. Special Agent Rick Sanchez hunts a serial murderer who is targeting women on a multi-state killing spree. Kendra Dean, an agent Rick met on a joint mission six months ago, has found the most recent victim. Rick and Kendra once shared a tempting chemistry but time and miles made their spark a distant memory.

Veronica Kildare cannot believe her luck–being shot at, again, by the bad guys. The sound, the feel of the bullet, and the hatred resonate for more than just the transitory moment of impact. She has relocated to a new state, but brutality has rampaged into this life as well.

Michelle Maxwell has just blown her future with the Secret Service. Against her instincts, she let a presidential candidate out of her sight to comfort a grieving widow. Then, behind closed doors, the politician whose safety was her responsibility vanished into thin air.

When the Red Rose Killer leaves his calling card for Staff Sergeant Felicity Monroe, she knows exactly what that means-she's on his revenge list. Her boss, Master Sergeant Westley James, and K-9 German shepherd Dakota become her guardians, but they'll have to act fast to escape the man who wants her dead.

After years of paying her dues on the force, Beth Sturgis has earned her place as a detective for the Robbery-Homicide division of the Atlanta PD. Now, she's heading up a major manhunt for a potential serial killer who's working his way inward from the outskirts of the city. The copycat elements in the first crime scene lead Sturgis to retired FBI agent Jack Kale, who was responsible for apprehending and nearly killing the murderer known as the Scarecrow, the same Scarecrow who appears to be this new killer's terrible inspiration.

When a local girl falls prey to a sadistic serial killer, Nashville homicide lieutenant Taylor Jackson and her lover, FBI profiler Dr. John Baldwin, find themselves in a joint investigation pursuing a vicious murderer. The Southern Strangler is slaughtering his way through the Southeast, leaving a gruesome memento at each crime scene – the prior victim’s severed hand.

Just two years ago, the media turned Detective John Spader into a hero. He'd caught a twisted serial killer terrorizing Massachusetts, and the "Jack of Spades," as the media dubbed Spader, was born. But when the murderer walked free on a technicality - free to kill again - the public turned on Spader. Now a new serial killer is on the loose. He wears the silly, gap-toothed, grinning mask of Galaxo, Starboy Avenger! - a cartoon alien of unparalleled popularity with children.

Carter's a homicide cop in Titanshade, an oil boomtown where 8-tracks are state of the art, disco rules the radio, and all the best sorcerers wear designer labels. It's also a metropolis teetering on the edge of disaster. As its oil reserves run dry, the city's future hangs on a possible investment from the reclusive amphibians known as Squibs. But now negotiations have been derailed by the horrific murder of a Squib diplomat. The pressure's never been higher to make a quick arrest, even as Carter's investigation leads him into conflict with the city's elite.

Recently retired due to a freak accident, NYPD officer Moe Prager is lost. In pain and without the job he loves, Moe relunctantly settles on the notion of going into the wine business with his brother. But when a suburban college student vanishes off the streets of Manhattan, Prager's universe is turned upside down and his life changed forever. Hired by the student's desperate family, Moe plunges deep into the world of New York's punk underground, sex clubs, and biker bars.

FBI Agent Jake Carlisle is in deep trouble. While undercover he's been shot, but he's not sure if it's the crooks or local cops behind it. Worse, if he can't get help fast, two lives will be lost - his and that of the young witness, a boy whom he's sworn to protect. On the run from both the police and the Russian Mafia, Jake will do anything to save the child at his side, even something illegal. In desperation he kidnaps a nurse from a hospital parking lot.

Harper Winston’s brother has disappeared. Pursuing his dream of sailing the Caribbean, Michael hasn’t responded to texts or emails in days. When even the Coast Guard can’t find him, Harper is forced to take desperate measures. Which means going to Chase Garrett, once her brother’s best friend, now the only man she can trust...or so she hopes.

A city of antebellum architecture, picturesque parks, and cobblestone streets, Savannah moves at a graceful pace. But for Harper McClain, the timeless beauty and culture that distinguishes her home’s Southern heritage vanishes during the dark and dangerous nights. She wouldn’t have it any other way. Not even finding her mother brutally murdered in their home when she was 12 has made her love Savannah any less.

For San Francisco’s newest medical examiner, Dr. Jessie Teska, it was supposed to be a fresh start. A new job in a new city. A way to escape her own dark past. Instead, she faces a chilling discovery when an opioid-overdose case contains hints of something more sinister. Jessie’s superiors urge her to close the case, but as more bodies land on her autopsy table, she uncovers a constellation of deaths that point to an elaborate plot involving drug dealers and Bitcoin brokers.

Malcolm West is fleeing the hell he unleashed in his last assignment as an undercover cop. A backwoods bungalow sounds like the perfect place to start over. Until he discovers he's been set up....