Ep. 55: Armstrong and Sig defeat Sloth while Hohenheim battles Father underground
Aired on May 2, 2010

The Armstrong siblings struggle against Sloth and mannequin soldiers until Izumi and Sig arrive to help. Together, they inflict enough damage on Sloth to kill him, then turn their attention to the remaining mannequins. Meanwhile, Hohenheim fights Father underground. Father cannot extract the philosopher's stone from Hohenheim, who feels something is missing. After capturing most of the Central Command Headquarters, the Briggs Fortress soldiers begin to celebrate. However, Bradley, who is still alive, approaches the headquarters and promises to reclaim it.
Episodes
- Ep. 51 · Edward's group encounters mannequin soldiers while Olivier fights Sloth and Alphonse faces Pride and Kimblee.
- Ep. 52 · Alphonse and Armstrong fight homunculi while allies arrive to turn the tide.
- Ep. 53 · Mustang's team broadcasts coup rumors while Briggs attacks Central Command
- Ep. 54 · Mustang refrains from killing Envy after Edward explains the homunculus's jealousy of human resilience.
- Ep. 55 · Armstrong and Sig defeat Sloth while Hohenheim battles Father underground
- Ep. 56 · Hohenheim destroys Father from within while Bradley attacks Central Command and fights Greed
- Ep. 57 · Fu battles Bradley while Edward's group faces the doctor and rejected candidates.
- Ep. 58 · Bradley falls into the moat while Ling defends the gate using Greed's shield.
- Ep. 59 · Mustang sacrifices himself to save Hawkeye while Scar fights Wrath and May arrives at Father's lair.