Episode 42: His Name Is Unknown (2003 series)

Synopsis
Scar is set to create the Philosopher's Stone using Archer's soldiers as the final ingredients. Underground, Ed desperately fights to reach the surface in time to stop the massacre.

Trivia

 * During the attack where the army is searching for Scar, a sign is seen on one of the buildings; it says "Mother Land" with "So Feel Good" above it. This could possibly be a reference to the 3rd ending theme of the anime with the same name. The previous episode used this ending theme and was the last to do so before replacing that theme with the 4th and final theme "I Will". This could also be a reference to Rose being the "Holy Mother" of the land and she could be considered as a leader of the land in this sense, though this is rather a stretch.