Turned into two armed camps by the accidental release of a deadly virus, the United States has become: the Federation, where the Normals live; and the Zone, a forbidden territory housing the mutated members of humanity known as Undesirables. Now, sixty-three years after disaster first struck, the terrorist mutant rights organization known as the Front is striking back, and for Front leaders Sara Ford, Zone pilot Duvall may prove the perfect means to keep her most precious weapon out of the Federation's clutches.