Todd and Viola are pursued by power-hungry Prentiss and mad minister Aaron as they set out across New World, searching for answers about their colony's true past and seeking a way to warn the ship bringing settlers from Old World.
Alternate chapters follow teenagers Todd and Viola, who become separated as the Mayor's oppressive new regime takes power in New Prentisstown, a space colony where residents can hear each other's thoughts.
As a world-ending war surges to life around them, Todd and Viola face monstrous decisions, questioning all they have ever known as they try to step back from the darkness and find the best way to achieve peace.