It is 2173 and humankind, in the search for a valuable resource called Metaron, has expanded its reaches to Mars and the moons of Jupiter, and full colonies have been established. However, Earth keeps a tight reign over the colonials, known by the derogatory term "Enders", and discrimination is commonplace. Food supplies are short, movement of citizens is controlled, and many Mars inhabitants have tried to rise up against Earth, but to little avail.
