As a former smokejumper, arson investigator Bri Tucker knows her way around fires. But after a mysterious blaze takes the life of a former colleague, Bri inherits a curious puzzle from him that raises questions about several fiery deaths. Someone, however, doesn’t want her picking up where he left off in search of answers. When she teams up with ATF Special Agent Marc Davis to solve the puzzle, the case heats up—as does the attraction between them.

When the long-awaited reunion between Risa and her brother, Trenton, ends in tragedy, Risa is riddled with guilt, unable to cope with the responsibility she feels over his death. On leave from the FBI, Risa returns to her former career as an English teacher at a local college, only to see her past and present collide when one of her students, Carson Mercury, turns in an assignment that reads like an eyewitness account of her brother’s murder, with details never revealed publicly.

Orphaned as a child in Russia, boat captain Sasha Petrov has spent most of her life adrift, anchored by only her loving foster family. So when they beg her to return to the family marina in Safe Harbor, Florida, for Mama Rosa's sixtieth birthday, Sasha complies, hoping to put the past behind her. But Mama Rosa has other plans: she wants her three foster daughters to find Tony, the biological son who disappeared twenty years earlier.

The Martinellis were the closest thing to family Cat Johnson ever had. That’s why she ran - to protect them from her threatening past. The orphaned child of classical musicians, she’s been lying low in Nashville and performing at the No Name Café. When Cat reluctantly agrees to attend the wedding of her beloved foster sister, the plan is simple: make a quick appearance at the Martinellis’, then disappear again. Instead, she’s thrust headlong into a nightmare. After a wedding guest is murdered, Cat’s past becomes harder and harder to avoid. So does handsome and inquisitive Safe Harbor cop Nick Stanton.

Fraser Marshall is pretty sure his career as a Spec Ops fighter is over. Yes, he’s gone into private security, working for Jones, Inc, but his last gig ended with him wounded and taken captive. And those wounds just won’t heal. The last thing he wants to do is stick around his family’s winery pressing grapes. But what choices does he have?

Luke has teamed up with Faith before, but he's not convinced she's up for the job, and she's not convinced he's telling her everything he knows. As more agents are targeted, Luke and Faith will have to learn to trust each other and work together to bring a killer to justice and prevent any more names from joining their fallen brothers and sisters on the Secret Service Wall of Honor.

Private investigator Fitz McCaffrey went to Belize on a case, bringing his teenage sister Shelby along with him. They have no good reason to leave the resort and hurry back to the harsh New England winter. They lost their parents, he lost his job as a cop, and they both need time to heal. Besides, when Fitz meets and spends time with the beautiful and charming Tabitha Eaton, he falls hard.

EMT Freya Olson has lost her faith, but not her drive to save those who need her help. When the past that her family left behind after her mother's death shows up in Benson, Freya lands on the target list as well. But things aren't what they seem, and Freya’s loyalty will be pushed to the limit.

Former FBI Special Agent Jack Tanner is working as a detective in Montana when he comes across a body in the national forest during a search and rescue mission. He's committed to finding the killer, even if it means working alongside his old flame, US Forest Service Special Agent Terra Connors. When Terra discovers that the murder victim had ties to a powerful and dangerous trafficker of archaeological artifacts, the investigation takes a deadly turn - one that hits too close to home.

Fifteen years after a serial killer tormented them, Addie and Jacob are living very different lives. As an FBI Profiler, Addie is on the edge of burnout. When she returns home, she has to face down every nightmare she's ever had. Is the resurgence of a series of all too familiar deadly crimes the work of a former ally, or a mastermind who has been pulling her strings all along?

Police Chief Autumn Long is fighting to keep her job when an unexpected wave of violent crime sweeps through her small Alaskan town. Does Grier Carter, a relative newcomer to town, actually have her back? Or is she all alone as the body count rises?

CIA analyst Brynn Taylor developed a new program to combat terrorism, and she invited members of foreign intelligence agencies to America to foster cooperation between countries. Now one of them, Egyptian spy Remon Riad, is missing. Jack Hudson has been working for the Strategic Neutralization and Protection Agency for almost nine years and takes the lead in hunting down the missing spy. But he isn’t at all pleased to find out Brynn is involved.

Detective Danni Grace has never met a police officer who wants to face a scenario where pulling the trigger on another person is the only option. When the worst does occur and there’s a police-involved shooting, it leads to riots and calls to disband the entire police force in La Rosa, Danni’s hometown.

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.

Holly has drifted from one place to the next for as long as she can remember, never settling long enough to build a life. It's the only way she knows how to survive in a world that has no place for someone like her. But when mysterious footsteps follow her home, and she finds a cryptic note taped to her door, she realizes she's stayed too long. The man she's hiding from has found her. But how?