No sooner has Alexis Stone been sworn in as the interim sheriff for Russell County, Tennessee, when a serial killer dubbed the Queen's Gambit Killer strikes again—this time in her hometown. Pearl Springs is just supposed to be a temporary stop along the way to Alex's real dream: becoming the first female police chief of Chattanooga. But the killer's calling card—a white pawn and a note with a chess move printed on it—cannot be ignored. Pearl Springs chief of police Nathan Landry can't believe that his high school sweetheart Alexis (he refuses to call her Alex) is back in town, and he can't help wanting to protect the woman he never stopped loving. But as the danger mounts and the killer closes in, can Nathan come through on the promises he makes to himself to bring a killer to justice before it's too late.

As a child, artist and potter Dani Bennett witnessed the brutal murder of her parents. With no memory of the incident or her true identity, she was forced to take on a new name and a new life, hidden away in Montana for the past 25 years. Mae Richmond has spent the same stretch of time searching for her granddaughter, who went missing the night her daughter and son-in-law were murdered. Convinced the woman she saw in a pottery magazine feature is the woman she's been searching for, she enlists the help of K-9 officer Mark Lassiter of Pearl Springs, Tennessee, who tracks Dani down. Skeptical but curious, Dani sets out on a journey to uncover the secrets of her past and reclaim her true identity. But someone close to her is determined to keep the truth of what happened all those years ago hidden.

Deputy Jenna Hart has only been working in her sleepy hometown of Pearl Springs for seven months when city officials begin to be targeted by a killer. Twenty years ago, the construction of a dam caused people to lose their land to eminent domain. That wound has not healed with time, and someone bearing a grudge is clearly set on revenge. With the former mayor of Pearl Springs now running for the US Senate, Jenna will have to call in backup to ensure his protection. That's where Agent Maxwell Anderson comes in. He and Jenna used to work together in the Chattanooga Police Department, and there was even a smoldering fire of attraction. Now they team up to track down the killer before a big political rally that promises to bring not only the former mayor into the crosshairs but hundreds of civilians as well. As the sparks of romance reignite and the threads of the investigation get tangled when another suspect comes into play, Jenna and Max will have to draw on all of their skills to stay alive and prevent the wave of disaster poised to hit the community of Pearl Springs. The question is, can either of them fully trust that the other has their back?