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.

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.

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.

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....

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.

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.

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.

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.

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.

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.

Former Hanover County Sheriff Buck Lawson leaves the mountains of North Carolina to take a job as the police chief of the small South Georgia town of Mercy, and soon finds himself in over his head. For one thing, his predecessor has been murdered...Buck has inherited an unsolved homicide, a house that may well be haunted, and a police department that is almost certainly corrupt. It falls to Buck to free an innocent man and bring the former police chief’s killer to justice while wading through the quagmire of incompetence and dishonesty that permeates his office.

When a fellow FBI agent is kidnapped and a protected witness vanishes, Leo Gallagher will stop at nothing to find them both. So when he discovers a link between the case and a single mother in Wyoming, Leo and his trusty K-9 partner rush to question Alicia Duncan. Could she be the key to locating the missing persons?

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.

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.

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.

NYPD Red is a special task force charged with protecting the interests of Manhattan's wealthiest and most powerful citizens. When a world-famous movie producer is poisoned on the first day of a Manhattan film festival called Hollywood on the Hudson, they are the first ones called. Then an actor is killed on the set of a film. And a Molotov cocktail explodes at a movie premiere.

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.

A killer is using labyrinthine storm drains to dispose of his victims, who are found handcuffed and drowned, washed out of the rain-filled drainage lines like garbage. The crimes compel FBI Agent Tess McCallum to crack the case, but they're touching a nerve in Personal Security Consultant Abby Sinclair. She fears it's the same madman who invaded her nightmares once before. As the two women work with each other to solve the case, tensions rise and tempers flare. And as sure as the rain, a new killing season begins.