The future. Having driven Terra to the brink of environmental collapse, humanity decides to reform itself by ushering in the age of Superior Domination (S.D.), a system of social control in which children are no longer the offspring of parents but progeny of a universal computer. The new social order, however, results in an unexpected byproduct: the Mu, a mutant race with extrasensory powers who are forced into exile by The System. The saga begins on educational planet Ataraxia, where Jomy Marcus Shin, a brash and unpredictable teenager, is nervously preparing to enter adult society. When his Maturity Check goes wrong, the Mu intervene in the great hope that Jomy, who possesses Mu telepathy and human physical strength, can lead them back home, to Terra...

Jomy Marcus Shin has led the telepathic Mu race into hiding on Naska, a planet abandoned long before by human colonists. Naska provides a temporary home, but it is no substitute for Terra. The first Mu children in hundreds of years to be conceived naturally are born there, giving the Mu the promise of a bright future. Their fragile peace, however, may soon be shattered...

In this, the last installment of the classic, Jomy Marcus Shin leads the Mu to their final showdown with humanity. Tony and eight other naturally-conceived Mu, who all possess incredible powers rivaling Jomy's own, take up the frontlines in the offensive and deliver the human side a series of staggering defeats. But Keith Anyan, head of the Terran defense foreces, has a few tricks up his own sleeve for dealing with the Mu. As the conflict nears its climax, the long-hidden secret at the heart of the Superior Domination order finally comes to light.