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.

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.

DEA Agent Doug Bridges is angry to realize his stepsister has been kidnapped after her night shift at the hospital. He goes into full agent mode to investigate, but soon runs into dead ends. Winter in northern Wyoming is no joke and he needs help, fast. When he’s referred to the Sullivan K-9 Search and Rescue team, he convinces Maya Sullivan and her Siberian Husky Zion to help him find Emily.

Sexy-as-sin Police Chief Mike Flannery knows the new arrival to Hopewell Springs is trouble. She has a smoking-hot body and a quick wit...and he'll be damned if that's not a turn-on. But this former NYPD cop and small-town heartthrob has been burned before, and there's no way he'll let that happen again. New York City Detective Cassie Yates is on the run. A six-month undercover sting in a sleazy bar seemed like a textbook arrest - but now there's a hit out on her.

All Major Dani Addams wanted when she started up that trail was to mourn and honor her fallen friend. She has no way of knowing the weather is about to turn on her in the worst possible way - or that she's about to meet a man who will change her entire life. Ex-SEAL Trip Williams and his K9 Valor were brought in to rescue a film crew that got caught in the storm. He isn't expecting Dani. But once he finds her, he will keep her safe...even if he has to disobey direct orders and fight Mother Nature herself.

K-9 officer Tarren McGregor never imagined that a cartel would find its way to Texas’s South Padre Island—or target his best friend’s sister. But when Julia Hamilton witnesses and prevents the kidnapping of a teen girl, Tarren knows that trouble is soon to follow. Because Julia didn’t just protect the girl—she saw the abductor’s face. Now she’s marked for murder, and it’s up to Tarren and his K-9 partner to keep Julia safe from the human traffickers in pursuit…even if it means putting themselves in the line of fire.

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.

Heath "Ares" Sterling thought he'd never see Hailey again. But now that fate—and Iniquus Logistics—has brought them together again, he'll do whatever it takes to earn a second chance with the one who got away. If only they were meeting under less deadly circumstances . . . Hailey Stapleton hates the idea of being a damsel in distress. But when her latest humanitarian efforts land her in a warzone, she needs help fast. It shouldn't surprise her that Ares races to her rescue—or that she's as attracted to him as ever. Too bad their timing couldn't be worse.

Grieving the death of his partner, Theo Bosco has no room in his life for distractions. Though his instincts scream that he should avoid Juliet "Jules" Jackson, he can't seem to stay away. When Jules rescued her siblings, whisking them away to the safety of the beautifully rugged Colorado Rockies, she never expected to catch the eye - or the heart - of a cop. Yet as Jules struggles to fight her growing attraction to the brooding K9 officer, another threat lurks much closer to home. And this time, there's no escape.

K-9 officer Jared Miles stumbles upon a crime scene on his day off and believes Kassie Ashbaugh is the victim of a random attack. However, as threats on her life continue, he realizes that Kassie is in grave danger. Her father's abandoned boat suggests foul play, and Jared suspects someone is after Kassie for something her missing father is hiding. Can Jared unravel the mystery before unknown enemies catch her?

All Deputy US Marshal Dirk Sterling’s instincts warn him not to trust his new boss, Chief Emory Grey. In the few weeks Dirk has known her, Grey has already lied to him and is proving to be something other than she seems. Grey tasks Sterling with heading up a Federal Task Force to hunt down an international smuggler suspected of crossing the US border carrying an invaluable ancient artifact.

Jasper, watching Mason go down, is all-in on the investigation. Taking over the current investigation team, he distrusts everyone. Tesla, his cousin, expects Jasper to get to the bottom of this and fast. ER nurse Amber isn't on Masons team but knows something major is happening. The hospital is overwhelmed with men, as they want updates on Masons condition. A few look like they belong, and then a couple don't. Taking pictures of those in question, she sends them to Jasper, which starts a cascading chain of events. And none of it good.

Chief of police Tristan Church likes Marsville just the way it is. He has his job and his police dog, Fuzz, for company. He could have Sheriff Skylar Morgan, too, but she’s determined to keep him at arm’s length, even if the one night they shared was unforgettable. Skylar can’t deny that the connection she has with Tristan is unlike anything she’s ever felt before. She loves Marsville, but while most of the town is happy with her as Sheriff, it’s been a long, hard road proving herself.

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.

Alone in the wilds of mountainous Asia, Jett undertakes an undercover military operation. With threats all around her, alone is the last thing she should be. So, when help arrives, she's ready to get off the cliff's edge and back to civilization. But when her teammates K9 partner shows up carrying a plea for help, nothing will stop Jett from racing to the rescue. Not even a sexy Delta Force operator on a mission.

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.

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.

CIA Color Code Johnna Red's mission is clear. She must hunt down a terrorist who is carrying out deadly attacks all over the world before the diabolical woman can strike again. Getting distracted by her handsome Delta Force Echo partner is not an option. Maybe in a different life, they could've been something. But in this life? Impossible…

Sexy-as-sin Police Chief Mike Flannery knows the new arrival to Hopewell Springs is trouble. She has a smoking-hot body and a quick wit...and he'll be damned if that's not a turn-on. But this former NYPD cop and small-town heartthrob has been burned before, and there's no way he'll let that happen again. New York City Detective Cassie Yates is on the run. A six-month undercover sting in a sleazy bar seemed like a textbook arrest - but now there's a hit out on her.

Newly retired from an elite Australian Commando unit, Basil St. John, code-named Halo, is moving to Washington, D.C. with his K9 Max. In his new job, Halo will spearhead the development of Team Charlie for Iniquus's famed Cerberus Tactical K9 unit. Learning the ropes with Panther Force, Halo focuses on navigating the dangers he and Max face in their new roles. Things turn dire as the team tries to save a family. When a stranger races into the fray, Halo is blown away by her determination and courage. But with no way to find her again, she is all Halo can think about.