Cinder and Captain Thorne are fugitives on the run, with Scarlet and Wolf in tow. Together they're plotting to overthrow Queen Levana and her army. Their best hope lies with Cress, an excellent hacker, who has been trapped on a satellite since childhood with only her netscreens as company. When a daring rescue goes awry, the group is separated. Cress finally has her freedom, but it comes at a high price. Cress, Scarlet, and Cinder may not have signed up to save the world, but they may be the only ones who can.