Passage

In the present, three individuals--Lila, a pregnant doctor, Kittridge, a loner, and April, a teenager caring for her younger brother--struggle to survive as a man-made apocalypse unfolds. While, one hundred years in the future, Amy and others support the Twelve as they fight a dark enemy with plans for humankind that are worse than extinction.

FBI agent Brad Wolgast vows to protect six-year-old orphan Amy Harper Bellafonte after a government military experiment she was involved in goes bad, unleashing a toxic virus that turns humans into bloodthirsty monsters.