Missing kids isn't one of Ryan Wolfgang's usual cases. "Wolf" is the head of Arrow Tactical Security, a black ops firm that takes on dangerous missions. His life is fast-paced and that's the way he likes it. Alexandria Rolfe has grown up in the shadow of her father—the world-renowned forensic scientist and psychologist, Dr. Richard Rolfe. She's determined to build her own reputation now that she's graduated with her PhD, so when she gets the call about the missing teenager, she jumps at the chance to prove herself.

Riggs “Chappy” Chapman didn’t expect to be disrupted at his remote cabin in the woods. But when a stray dog arrives on his porch, he winds up finding a stray woman, too, trudging through the snowstorm in search of shelter. His military days may be behind him, but Chappy is hardwired to protect her from the storm and whatever it is she’s running from.

CEO Lainie Madden has her hands full. In charge of a growing tech company, her work and her employees are her life. She’s sworn off love, because the sad reality is that she stinks at choosing men who aren’t self-absorbed cheaters. But when she starts receiving disturbing death threats and her company’s website gets hit with relentless cyber-attacks, she’s in over her head.

Grace Castle lived through hell, and she’s never fully recovered. Nor may she ever. But she’s better than she was and now devotes her time and energy to helping other women, until someone connects her old life to her new one. Suddenly, she’s forced to do something that goes against her conscience, moral compass, and heart.

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.

My body, broken beyond repair. The boy I’d thought was my forever. The life I’d always dreamt of. Now, Holt’s back. And he’s no longer a boy, but a man with shadows in his eyes and demons haunting him. He says he’s here to make things right. To get back a little bit of all we’ve lost. And he doesn’t show any signs of leaving the small town that has been my refuge. As stolen moments turn to days, Holt’s around every corner.

"You may now kiss your bride". They were the last words my mother heard before she collapsed on the church steps, poison ending her pitifully short life. When her new husband dies minutes later, all eyes turn to me. There are whispers. Accusations. The verdict is split. I murdered them both. Or I'm the next to die.

When hot-headed Zena's parole conditions lead her to the local turtle breeding ground to investigate the decline in hatchlings, she and her sister make an unexpected and horrific discovery. Now they're dodging bullets and running for their lives, and there's only one person who can help: her sister's ex-boyfriend.

The murder is oddly bloodless. Called in to consult on the crime scene, Dr. Toni Parthen has no time to puzzle out that peculiarity. A black-clad man who seems more brutal creature than human being stalks out of the night and kidnaps her.

Who leaves their girlfriend in the woods after a fight? My now ex-boyfriend, that’s who. One fight—okay, a big fight—because I found out he was cheating on me while we were camping, and poof! He left me in the woods. So, I start walking to town, only I end up at the river, where I meet Axel. This guy is huge. With a storm rolling in, I don’t have much choice but to trust him and take shelter in his cabin, since I’ve been walking for hours away from town. Several days of rain wash out the road and it looks like I’m stuck here with my giant.