Cate Nightingale, una joven madre viuda, vive pacificamente en una pequeña poblacion en Idaho, donde regenta un hostal con escasos visitantes. Cuenta con la ayuda de Calvin Harris, un enigmatico personaje que arregla los desperfectos del edificio. Sin embargo, cuando un huesped del hostal desaparece misteriosamente, la apacible rutina del pueblo se altera sin remedio. La brutal visita de unos matones exigiendo las pertenencias de ese hombre aterra a Cate y le hace temer por la vida de sus hijos. Calvin aparece y espanta a los agresores, pero esto no sera mas que el comienzo de la pesadilla: los intrusos se organizan para aislar totalmente al pueblo y convertir a sus habitantes en asustados rehenes. Ocultandose en la oscuridad de la noche, Cate y Calvin huiran al pueblo vecino para obtener ayuda, y durante ese viaje desesperado y lleno de peligros descubriran que los une algo mucho mas profundo e intenso que el miedo. / In the charming rural town of Trail Stop, Idaho, accessible to the outside world by only a single road, young widow Cate Nightingale lives peacefully with her four-year-old twin boys, running a bed-and-breakfast. Though the overnight guests are few and far betweenoccasional hunters and lake fishermenCate always manages to make ends meet with the help of the local jack-of-all-trades, Calvin Harris, who can handle everything from carpentry to plumbing. But Calvin is not what he seems, and Cates luck is about to run out. One morning, the B&Bs only guest inexplicably vanishes, leaving behind his personal effects. A few days later Cate is shocked when armed men storm the house, demanding the mystery mans belongings. Fearing for her childrens lives, Cate agrees to cooperateuntil Calvin saves the day, forcing the intruders to scatter into the surrounding woods. The nightmare, however, is just beginning. Cate, Calvin, and their entire community find themselves cut off and alone with no means to call for help as the threat gathers intensity and first blood is drawn. With their fellow residents trapped and the entire town held hostage, Cate and Calvin have no choice but to take the fight to their enemies under the cover of night. While reticent Cal becomes a fearless protector, Cate makes the most daring move of her life into the very heart of danger.