In a distant future, Earth's inhabitants have regressed to a primitive state, oblivious to the interstellar conflicts of yore. Meanwhile, the advanced lunar colonists, the Moonrace, aim to reclaim Earth as their own. Caught in the midst of this cosmic clash, Loran Cehack, a youthful Moonrace member and the skilled pilot of the fabled Turn A Gundam, endeavors to unite the estranged factions of humanity.