The Regional Office and its band of super-powered female assassins protects the world from annihilation. But a prophecy suggests that someone from inside might bring about its downfall. And now the Regional Office is under attack…

Rose is a young assassin leading the assault, eager to stretch into her powers and prove herself on her first mission. Defending the Regional Office is Sarah - who may or may not have a mechanical arm - fiercely devoted to the organisation that took her in as a troubled young woman.

On the day that the Office is attacked, Rose’s and Sarah’s stories will overlap, their lives will collide, and the world as we know it just might come to an end…