FBI Agent Jake Carlisle is in deep trouble. While undercover he's been shot, but he's not sure if it's the crooks or local cops behind it. Worse, if he can't get help fast, two lives will be lost - his and that of the young witness, a boy whom he's sworn to protect. On the run from both the police and the Russian Mafia, Jake will do anything to save the child at his side, even something illegal. In desperation he kidnaps a nurse from a hospital parking lot.

Eighteen years ago, Bela Houseman became a loose end. The powerful man who murdered her mother knows who she is and exactly what she saw that night. Giving up everything she's ever known, including her own name, was the only way to protect herself. Now, as the lead cyber security expert at HICC, an elite private security firm, Sabina O'Malley has mostly made peace with her past. Until a postcard arrives on her doorstep that shatters her carefully crafted safety.

Stone Townsend is the center for the pro-hockey team in Charleston. There are just a few things he’s concerned with: bringing his large family together again, leading his new team to a championship, and doing a lot of scoring–on and off the ice. Which is why it was the worst time to get an injury under new team management and a new coach.

Detective James Holton has been honorably discharged from the Army Criminal Investigation Division due to wounds sustained when an IED blew up near him. Now with the Lake City Police Department, he's rooming with his good buddy and partner, Cole, while he figures out his family dynamics. Physician Assistant Lainie Jackson is eighteen months out from an attempted murder perpetrated by her ex, which ended when she managed to grab the weapon and shoot him. When he appears to have survived and is back to finish the job he started, Lainie insists it's not possible.

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.