Following the Advance team, the Exodus ship heads toward a new homeworld. Here they will build a future without the threat of mutated changers. Chief Engineer Adina Vantressa, responsible for keeping the Exodus vessel operational, stays far away from her vast family. She doesn't trust them. Nurse Briar Lindemay shares a secret with her younger sister Caya, an unregistered changer whom Briar has unlawfully brought with her aboard Exodus...