When God loses faith in humankind, he sends his legion of angels to bring on the Apocalypse. Humanity's only hope for survival lies in a group of strangers trapped in an out-of-the-way, desert diner with the Archangel Michael.

A prince of the mythical world starts a rebellion against humanity in order to rule the Earth. Hellboy and his team must fight to stop him from locating the all-powerful Golden Army.