The Federation's greatest enemy appears on Earth in the most unlikely place. Is this a new invasion or something else entirely?

A young intelligence operative is sent one last training assignment. But here, at the edge of the frontier, nothing is as it seems.

Two sworn enemies encounter each other in battle. Now as they face certain death together, will they be able to put their differences aside?

Hoshi Sato becomes the empress of the evil Terran Empire. In a universe full of treachery, holding on to power is harder than getting it.