At the opening of a religious war, after a desperate escape, a lone starship makes an emergency landing. On this uncharted world, with a hold full of sleeping refugees, the crew of the T.C.S. Caledonia make humanity's first contact with alien sentients.

Can Captain Olivia Wrayburn make allies among these strange folk? Can she keep a world full of innocents from falling prey to fanatics? The true destiny of Equestria's youngest, still-untested Princess may hold the key.