15-year-old Simon lives in a world of tight controls. Everything is regimented, defined, observed. Yet he doesn't buy into any of it. During the day, he pushes against the boundaries. And at night, he questions his father's life and all it entails. Then, in one moment, everything changes for Simon as he takes on a job that leads him to the underground church and its movement to restore Christianity and the Bible to the world. The government will stop at nothing to stop this movement, and the stakes grow ever higher for Simon, his father, and the other Messengers.