After many problems in their 'utopian' society, Harry and Rissa get through many hardships and struggles to be together. But when their dear friend, Zayn, and a couple others are struggling, Rissa and Harry decide that they will help them leave the society, by crossing the borders. In order to leave, they have to cross the wall which separates their society, from supposed 'Nothingness'. No one, that has ever left the society, has been heard from ever again.
Along the way, Rissa and Harry realize that they, themselves, can't bear to live in this society any longer, because they come face-to-face with many more hardships that threaten to rip them apart.
They've made it once -- Can they do it again?
NOTE: This is the sequel to Invincible, so make sure that you've read that book before you begin this one.