Time is of the essence as Pax Armata remains in limbo. The Nomical Order has begun questioning Emperor Yujen's leadership as rumors spread. The Seven Colonies of Man fear they may soon be at war with one another once more.

Deep within the Claudius Colony, Code Silver leads a team of Prometheans in an effort to save his allies. There they find themselves face to face with two sun gods in an assault that will be known as the 'Battle of Ash and Stars.'

On the other side of the galaxy, a pair of PROs carry out their quiet mission alone aboard the Hyper-Train. Unfortunately for them, an unexpected guest makes himself known.