Former soldier, Frankie McGill has returned home from Afghanistan minus half of her left foot and with a plate in her head. After some months in medical care, she's ready to take on the new battle of finding and holding a job. But not just any job. Frankie is a combat-trained paramedic. When all she can find is a position in the small, mostly volunteer fire department of her old hometown, Frankie is immediately plunged into much more than dealing with her own trauma and holding down a job. She moves into a duplex that the previous tenant abruptly abandoned and quickly discovers someone has some dark secrets to hide—and they don't care who they have to kill to keep them hidden. Will Frankie's military training and experience be enough to save her life?