Full Metal Alchemist Brotherhood Episode 51 English Subbed Episode Title:The Immortal Legion.Episode Description:The Senior Staff member orders the mannequin soldiers to attack the invading troops, but instead they attack and begin to devour him. Edward opens the door where Alphonse had earlier fought against Lust, and the mannequin soldiers emerge from it eager to feed. Meanwhile, Olivier is attacked by Sloth, who had been ordered to kill her. Alphonse and Heinkel learn too late that Pride had been sending a morse code message from banging a stick on Alphonse's head, and they are soon attacked by Kimblee who frees Pride from his imprisonment. In the sewers, May is also attacked by the mannequin soldiers. Envy is freed in the struggle and manages to merge with them, returning to his human form. As Olivier struggles against Sloth, Armstrong arrives and joins the fight. Alphonse transmutes his legs off in order to help Heinkel, who then gives him the philosopher's stone that Kimblee had previously lost in the mine explosion. Alphonse reluctantly uses it to restore his legs, and then prepares to challenge Pride and Kimblee.