In the middle of the twenty-first century, Rezza lives with her sister Boyd and a group of other young, female outcasts. Terrified of the Guards who control the Earth, they survive on what they can find or hunt. And they wait for their Date of Origin, when they will find out if they too will morph into Aggers, the slave workforce controlled by the Guards. But a group of rebels has a daring, dangerous plan to make this Date of Origin the last one ever ...