Everyone thought the terrorist had completely destroyed the space station where the first faster-than-light spaceship was built. Actually, the survivors were implemented as softlife in the computers, and years later they and their virtual descendants live in a thriving but isolated community. Jason1, one of the few who used to be flesh and blood, doubts that this incorporeal existence really qualifies as life. But Iooi, a young native softlife, considers her kind an evolutionary step beyond biology, and three-dimensional space an annoying abstraction.

A spaceship arrives, and the two of them stow away in its computer, intending to establish ties with the rest of humanity. But the ship's crew is evasive about why they came and what their plans are. And the experimental spacecraft, lost since the attack on the space station, has returned, carrying an unexpected threat the softlife may be uniquely qualified to fight. Working with other softlife, an old friend, and the intimidating Space Force general Heather Lacey, Jason1 must take on terrorists, truly malicious software, and his own self-doubts.