At the end of every dark tunnel exists a light, but for Teru and Ako, the discovery of an exit to the surface will lead to a greater, more menacing threat. Once outside, Teru and Ako must depend on each other if they are going to survive the trek to Tokyo. But they also realize they are not alone in their quest for salvation.

Teru and Ako miraculously stumble upon a helicopter manned by two soldiers. Once airborne, Teru wonders about home as the helicopter cuts through the chilling cacophony of flames, brutal carnage, and putrid clouds of black ash. But their journey to safety takes a sudden downward turn, and forces them to make an emergency landing--but surviving the crash may be the worst thing that has happened to Teru and Ako.