Former detective Harper Adams knows three things for certain:

Her mother's death was no accident.

The evidence she's uncovered could destroy one of Arkansas's most powerful crime families.

And the dangerously attractive man she's hiding with is the only person she can trust.

On the run with James Malcolm-a man with his own dark secrets and a concussion that's slowing them down-Harper is hunted by Gerald Knox and his ruthless organization.

And somewhere in Little Rock, girls are being trafficked while the clock runs out.

Harper spent years following the rules. It cost her everything-her badge, her reputation, nearly her life. Now, with James at her side and vengeance in her heart, she's done playing by anyone's rules but her own.

The Knoxes killed her mother and built an empire on stolen lives.

Harper's going to burn it all down.

But destroying a criminal dynasty means crossing lines she swore she'd never cross. And when the man she's falling for has his own agenda, Harper faces an impossible choice: justice or vengeance?

In the dark, survival is the only rule.