Ep. 11: The Elrics seek the philosopher's stone in Xenotime while navigating impostors Russell and Fletcher Tringham.

Edward and Alphonse Elric travel to Xenotime searching for the philosopher's stone. After rescuing a girl named Elisa from a mine cart, she invites them to a feast. There, they learn that a man named Mugear is nearing completion of the stone. The brothers discover that two impostors, claiming to be themselves, are present. Alphonse attempts to purchase medicine for Elisa, but the townspeople refuse him, believing he is an impostor. However, the younger impostor, later identified as Fletcher Tringham, buys the medicine for him. That night, Edward and Alphonse infiltrate Mugear's mansion again. The older impostor, identified as Russell Tringham, attacks Edward with toxic crimson water. Fletcher intervenes to save Edward, revealing that the water has poisoned the town.
Episodes
- Ep. 7 · Ed investigates Tucker's chimera experiments while facing military pressure and a mysterious scarred man.
- Ep. 8 · Ed and Al investigate the philosopher's stone after Nina's death and Barry's arrest.
- Ep. 9 · Ed inspects Youswell coal mines while confronting corrupt military commander Lieutenant Yoki and his servant Lyra.
- Ep. 10 · Elrics assist Aquroya police in hunting alchemist thief Psiren while questioning her motives
- Ep. 11 · The Elrics seek the philosopher's stone in Xenotime while navigating impostors Russell and Fletcher Tringham.
- Ep. 12 · Mugear captures the Tringham brothers while the Elrics investigate Nash Tringham's past research.
- Ep. 13 · Edward challenges Mustang to a duel for information about Marcoh and the philosopher's stone.
- Ep. 14 · Envy impersonates Cornello in Lior while Scar kills Grand and Elrics escape with Armstrong
- Ep. 15 · Armstrong reveals Scar's Ishbalan identity while Marcoh recounts the state alchemist massacre.