Ed and Al visit Central, where a serial murderer is targeting State Alchemists. While the identity of the criminal is unknown, he is called "Scar" because of the X-shaped scar on his forehead. When the brothers are targeted as well, they fight Scar. In the face of overwhelming strength, Ed's Automail is destroyed and their lives hang by a thread. Will the brothers be able to overcome this crisis and restore Al's original body? Hidden state secrets, the "Promised Day," and the past of Ed and Al's father — layers upon layers of mysteries and truths come unraveled as this story heads to an epic finale. What is the final answer the brothers give...?