War and oppression are everyday constants for the people of the Badlands, who live under the thumb of their cruel Godolia overlords. Their rule is aided by giant mechanized weapons known as Windups. Eris Shindanai is a Gearbreaker, a rebel who specializes in taking down Windups from the inside. When Eris finds herself in a Godolia prison she meets Sona Steelcrest, a cybernetically enhanced Windup pilot. Sona has a secret: She has intentionally infiltrated the Windup program to destroy Godolia from within. Facing a direct attack to end Godolia's reign once and for all, Eris and Sona grow closer as comrades, friends, and perhaps something more. -- Adapted from book jacket.