"Primary Inversion" is set in a future where three star-faring civilizations vie for control of human-settled space. Fighter pilot Sauscony (Soz) Valdoria commands a squadron of four Jagernaut pilots, neurologically enhanced empaths who have been bio-engineered as weapons. Jagernauts have extensive biomech throughout their bodies, allowing for enhanced speed and reaction, and an embedded artificial intelligence (AI) in their spinal cords. They are pitted against the legions of the Trader empire, in particular the Aristo ruling class, a race that derives pleasure from the amplified pain and anguish of empaths—especially Jagernauts, as Soz knows from personal experience. Soz is also an imperial heir and may someday become the military commander of the Skolian Empire, the bitter enemies of the Traders.