When an interstellar test flight fails, Jodi finds herself returned to an Earth she doesn't know, a hundred years in the past. The AICs never landed here, but six Queen rocks of the Swarm are on the outer edge of the system, and heading Earthward. Jodi's fought the Swarm before and won, but then she had several million other AIC Domers helping her. This time around she's alone. One woman against the Swarm.
The world below is totally unprepared for what's coming. With only 600 days till planetfall, Jodi must take the fight out to the Swarm in deep space. Only one problem. This version of the Swarm has weapons and capabilities she's never encountered before. Capabilities she's struggling to counter. Struggling and failing, and she soon finds she's losing the fight. If Jodi can't stop them in space, the Swarm will land on Earth, and the extinction of the human race will follow.