The Compound. A training facility, school and home, for twenty-six young children, all under the age of twenty. They are not addressed by names, but instead, letters of the alphabet, followed by their generation number. They are taught about what the world was like, what the world is like, and what the world will become, with their help. They have been told that there is a world out there to save. They have been told that there are similar Compounds, nine others, across the world, containing people like them. G1 does not believe what she has been told, and she has reason not to. The Members have been lied to. And now, G1, X1 and M2 must find out what is really out there. They may start wishing that they didn't.