On the eve of a recurring catastrophic event known to extinguish nations and reshape continents, a troubled orphan evades death and slavery to uncover her own bloody past. As the dark star of the cataclysm rises, an illegitimate ruler is tasked with holding together a country fractured by civil war, a precocious young fighter is asked to betray his family.

Through tense alliances and devastating betrayal, these disparate characters attempt to hold against a seemingly unstoppable force as enemy nations prepare for a coming together of worlds as old as the universe itself.