Sacrifices
Lin and Bradley's fight leaves them hanging over the side of the front gate, but Lin is saved by Lan Fan while Bradley falls into the moat below. As Buccaneer lays dying, he gives his final request to Lin to defend the front gate. Already distraught by Fu's death, Lin complies and draws upon the full power of Greed's Ultimate Shield to annihilate all Central forces before the gate. Underground, Ed, Izumi, and the unconscious Al reappear in Father's lair to find Hohenheim subdued. With four of the five human sacrifices, Father is left to wait for the fifth. The gold-toothed doctor in the levels above decides to use Roy as the candidate for the fifth sacrifice, has Riza's throat slit and tells Roy that he will only save her if he performs human transmutation.
Aired 23/05/2010EP 58 - Sacrifices
Fullmetal Alchemist: Brotherhood
"In order for something to be obtained, something of equal value must be lost."
Alchemy is bound by this Law of Equivalent Exchange—something the young brothers Edward and Alphonse Elric only realize after attempting human transmutation: the one forbidden act of alchemy. They pay a terrible price for their transgression—Edward loses his left leg, Alphonse his physical body. It is only by the desperate sacrifice of Edward's right arm that he is able to affix Alphonse's soul to a suit of armor. Devastated and alone, it is the hope that they would both eventually return to their original bodies that gives Edward the inspiration to obtain metal limbs called "automail" and become a state alchemist, the Fullmetal Alchemist.
Three years of searching later, the brothers seek the Philosopher's Stone, a mythical relic that allows an alchemist to overcome the Law of Equivalent Exchange. Even with military allies Colonel Roy Mustang, Lieutenant Riza Hawkeye, and Lieutenant Colonel Maes Hughes on their side, the brothers find themselves caught up in a nationwide conspiracy that leads them not only to the true nature of the elusive Philosopher's Stone, but their country's murky history as well. In between finding a serial killer and racing against time, Edward and Alphonse must ask themselves if what they are doing will make them human again... or take away their humanity.
(Source: MAL Rewrite)