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.

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.

When patrol officer Trisha McCord's six-month-old son is nearly abducted, K-9 officer West Cole saves him just in time. The single mom has no leads on who would try to take her baby—or why. And West won’t let her deal with the threat on her own, especially with the kidnapper closing in and attacks escalating. With her child’s life at stake, Trisha, West and his K-9, Peanut, must race to catch a ruthless criminal in time to save innocent lives—including their own.

Undercover on a cruise ship with her K-9 dog, Alaska State Trooper Maya Rodriguez uses herself as bait to catch a murderer. And security officer David Garrison is the only person she can trust with the truth. But with a possible serial killer dead-set on taking out anyone who stands in the way, will Maya and David make it off the ship alive?

K-9 officer Jackson Locke’s sister has vanished—and the key to finding her lies with Amy Scout…his sister’s best friend and his old crush. But when Amy comes under attack, two things become clear: Jackson’s sister has been investigating cold cases and someone wants Amy dead. Now he must untangle the mystery between the cold cases and his sister’s disappearance while guarding Amy from an enemy willing to kill to hide the truth…

Meet Jack, a tracker with a past he’s trying to escape. The first epic book of the Minnesota Kingston series by USA Today bestselling author Susan May Warren. Her secret blew apart his life—and now she needs his help? If only he could say no… Ten years should be long enough for Jack to forget the girl-next-door, his kid sister’s bestie and the woman—no, girl—who derailed his life. Now, he sort of likes his loner world as a missing person’s tracker. Well, mostly. But of course, when he returns home for his sister’s wedding, there she is… Nope, not forgotten at all.

After a betrayal that almost took his life, Detective Joel Standage is deskbound. A new assignment is his chance to find out if he still has what it takes to be a cop. His mission? Get close to Mollie Crane, a woman who’s as guarded—and wounded—as he is. Her service dog, Magnus, trusts Joel before she does. When it becomes clear that his interest in her crime boss ex-husband is putting her in danger, what started as a case becomes personal, and Joel will do whatever it takes to protect her…

Mountain Country K-9 Unit Books 1-3 includes Baby Protection Mission, Her Duty Bound Defender, and Chasing Justice. Baby Protection Mission: When a baby is targeted, can a K-9 team keep him safe? Her Duty Bound Defender: Threatened and falsely accused…she’ll need this K-9’s protection. Chasing Justice: A man falsely accused…can a K-9 unit dig up the truth?

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.

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 her estranged uncle attempts to sabotage her family’s reindeer ranch, K-9 team assistant Katie Kapowski heads home to help save it—and becomes his target. With their rocky past, Alaska State Trooper Brayden Ford and his furry partner are the last team Katie wants assigned to protect her. But with the ranch under siege, they must work together…or risk falling victim to a killer.

Believing he’s tracked down his missing informant in a gem-smuggling investigation, FBI agent Ryan McCloud unwittingly leads deadly assassins to Catherine Reed’s mountain hideout. As the informant’s identical twin, and already hiding from her abusive ex-husband, Catherine now has two threats to her life. With danger at every turn, can Ryan protect Catherine and find her missing sister…before it’s too late?

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.

Former Special Forces operator Sergeant Crew Gatlin takes everything in stride, even the career-ending incident that separated him from the army, half a leg, and his beloved working dog, Havoc K027. Putting his life back together and lying low, he takes a job with A Breed Apart and is unexpectedly reunited with Havoc. It’s too good to be true—and the proof is in their first assignment: to work as a K-9 team for a television drama in Los Angeles.

Haunted by a half-forgotten past, former army photographer Remi Grant is working at an isolated storm-watching lodge on the rocky Washington coast when she receives a mysterious puzzle piece. The puzzle piece may be the catalyst to unlock a disturbing incident she struggles to remember—the event that sent her into hiding. But with heavy storms rolling in, she has to focus on the present, not get caught up in the past.

Undercover on a cruise ship with her K-9 dog, Alaska State Trooper Maya Rodriguez uses herself as bait to catch a murderer. And security officer David Garrison is the only person she can trust with the truth. But with a possible serial killer dead-set on taking out anyone who stands in the way, will Maya and David make it off the ship alive?

When her estranged uncle attempts to sabotage her family’s reindeer ranch, K-9 team assistant Katie Kapowski heads home to help save it—and becomes his target. With their rocky past, Alaska State Trooper Brayden Ford and his furry partner are the last team Katie wants assigned to protect her. But with the ranch under siege, they must work together…or risk falling victim to a killer.

Forensic artist Isabella Whitmore narrowly escapes an abduction attempt in the Dakota Badlands, only to find herself targeted by a mysterious assailant. With the help of FBI special agent Liam Barringer and his K-9, Guthrie, Isabella must uncover the identity of her would-be murderer. Is the culprit the elusive kidnapper turned serial killer who’s targeting Isabella because she matches his victim profile? Or has her secret past finally caught up with her? As the attacks escalate, Isabella and Liam must find the truth and stop the danger before it’s too late.

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.

Mountain Country K-9 Unit Books 1-3 includes Baby Protection Mission, Her Duty Bound Defender, and Chasing Justice. Baby Protection Mission: When a baby is targeted, can a K-9 team keep him safe? Her Duty Bound Defender: Threatened and falsely accused…she’ll need this K-9’s protection. Chasing Justice: A man falsely accused…can a K-9 unit dig up the truth?