A sinister voice rings out from the shell of Al's armor, and Ed and Greed find themselves under attack. As the Homunculi use the darkness to their advantage, a face from the past arrives to join the battle.

With his father's help, Al takes incredible steps to contain the monstrous Pride. As the sun begins to rise on the Promised Day, the youngest Elric listens while the Homunculus ponders his very human mother.