Cael McAvoy, who lives in the corn-overrun Heartland below extravagant sky flotillas, grows tired of scavenging and living in the Empyrean Empire's shadow and vows to do something to change his lot in life.

Along with his pals Lane and Rigo, Cael journeys to the Empyrean to rescue his sister and Gwennie, risking everything while outmaneuvering Boyland, while Gwennie makes a bold move that changes the course of an Empyrean man's life.