For forty years, residents of the Arcadia - a former cruise ship turned refugee camp - have been prohibited from making landfall. Esther is a loyal citizen, working flat-out to have the rare chance to live a normal life as a medic on dry land. Nik is a rebel, planning something big to liberate the Arcadia once and for all. When events throw them both together, their lives, and the lives of everyone on the ship, will change forever.