Rescuing a kidnapped child is part of the job for search-and-rescue K-9 handler Patrick Sanders—but this time it's his son. Now Patrick and his furry partner must work with his high school love, Jennie Wilcox, to shield the little boy he just learned about. In a hurricane's aftermath, Detective Erin Jeffries is stunned when she and her K-9, Alcee, uncover a collapsed building's only survivor—her long-ago ex, Cody Elbourne .When park ranger Autumn Mercer and her K-9 partner, Sherlock, meet a stranger in the mountains whose brother is injured, they drop everything to help.

After losing her military K-9, former marine Maya Thompson swears she’ll never work with dogs again. But when she returns home to Colorado and accepts a job with US Forest Service law enforcement, fate brings K-9 Juniper into her life just as another tragedy unfolds.

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. 

Navy SEAL Jack Daniels (save the jokes, he’s heard them all) and his trusty Belgian Malinois sidekick, Dakota, are back home in Asheville, North Carolina, after a bomb left them scarred. Unable to accept that he’ll never be able to return to his team, Jack is looking for a miracle. What he isn’t looking for is a permanent relationship, though he’s open to a no-strings distraction at the magic hands of gorgeous local potter Nichole Masters.

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.