Hughes tasks Armstrong, Brosh, and Ross to investigate what's going on inside the 5th Laboratory. Meanwhile, with Alphonse held hostage by Lust, Ed is forced to attempt the unthinkable. This episode marks the assumed deaths of Envy, Gluttony and Lust and the debut of The Knight Of Alchemy.
|The Knight of Alchemy|
|Season 1, Episode 22|
|Air date|| March 6, 2004 (Japan)
April 9, 2005 (US)