After learning about what happened to Shou Tucker and his daughter Nina, the Elric brothers begin to question what alchemy really is. Meanwhile, Colonel Mustang and the other State Alchemists track down the serial killer Scar.

Mustang, Alphonse, Havoc, and Hawkeye split up to search a military laboratory. If Lust has her way, none of them will ever see each other alive again.

Truths are exposed when Al finds the one called Father, and Mustang hears the tale of Bradley's creation - but the most amazing revelation is reserved for Ed after he once again breaks alchemy's greatest taboo.

Long ago, the blood of a simple slave was used in an experiment which created a strange, shapeless being. In exchange for the gift of existence, the being gave the slave a name - and cursed him with immortality.

As the light of the sun vanishes, Mustang learns the loss which comes from seeing the other side of the Gateway - and five sacrifices gather in the dark presence of the Father.

The light is gone. Shadows swallow everything. As the planet quakes and the heavens tremble, the souls of heroes and villains alike vanish into darkness. The circle is complete.

As one shared journey ends, many journeys begin. Those most touched by the conflict which surrounded the Philosopher's Stone now go their separate ways. One thing is certain: they will meet again.