The Union of Peace - the world's haven and supreme power, as of 2400. Calla Hartwell - the president's daughter, and the epitome of perfection. But for how long? When the Union is thrown into chaos after the appearance of a new and dangerous foe, a challenge must be faced, long believed to have been eradicated - defilement. And what way to make matters more complicated, when the enemy comes from 12 years into the future?

There's only one option: elimination. Out of them all, there is no one - not even the president - more willing to defeat her than Calla.