The Navigator is written about the main character, a boy named Owen, who finds out that a mysterious enemy, the Harsh, is making time go backward. The Harsh are a mysterious vaporous, faceless beings, all in white, that can glide effortlessly across the landscape and freeze people. Owen joins the Resisters who have now awakened from the Sleep. After joining the Resisters he meets the Sub-Commandant, Chancellor, Samual, Rutgar, Dr. Diamond, Pieta, the Contessa and Cati, the sub-commandant's daughter. Some of the Resisters, especially Samual, are suspicious of Owen because they believe Owen's father betrayed them.