The Other Side of the Gateway
While being effortlessly pummeled, Father desperately tries to absorb Greed's Philosopher's Stone. Greed decides to part from Lin's body, and uses his carbonization ability to turn Father's body into weak charcoal. Father extinguishes Greed's soul, killing him, but Ed punches through Father's chest, releasing all the souls of the people of Xerxes and sending Father to the Gate of Truth where he is trapped for eternity. In the wake of Father's defeat, everyone mourns Al's sacrifice. Ed rejects using a Philosopher's Stone to bring him back to life, even after Hohenheim offers his final life as an apology for the pain Ed and Al were forced through. Ed ultimately decides to perform a human transmutation on himself, sacrificing his own Gate and his ability to use alchemy with it. As a reward for discovering he doesn't need to perform alchemy, Ed is allowed to bring Al back with him in his original body. As everyone recuperates from the battle, Hohenheim returns to Resembool and dies peacefully before Trisha's grave.
Aired 27/06/2010EP 63 - The Other Side of the Gateway

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)