Brothers Edward and Alphonse Elric hoped to resurrect their motherGÇÖs corpse when they attempted human transmutation, but their reckless defiance of alchemyGÇÖs Law of Equivalent Exchange resulted in no miraculous reunion. Their experimentation with forbidden science plunged the boys into a hellish nightmare; half of EdGÇÖs limbs were torn from his body, and Al awoke to discover his young soul transferred to a suit of armor. There is but one way the Elrics can restore what was lost - find the fabled PhilosopherGÇÖs Stone. In a land marred by war and persecution, where truth comes only with tragedy, they undertake their desperate search. Every step closer to the mythical PhilosopherGÇÖs Stone brings the broken brothers deeper into the darkest shadows of reality. Sinful abominations, both unnatural and human, will try to keep the boys from their redemption - but the Elrics must forge ahead if despair is to be transmuted into peace.
Fullmetal Alchemist: Brotherhood Collection 1 (Ep 01-13) (Blu-Ray)
In alchemy. All must obey the law of equivalent exchange