Fullmetal Alchemist: Brotherhood - episode 22 - 05 Sep, 2009

Ling fights Bradley and Gluttony as he tries to escape with Lan Fan. Meanwhile, Winry hears about the Elric brothers fighting Scar and heads over there. As she arrives, she hears Edward questioning Scar about the death of her parents. Shocked by this, Winry picks up a nearby gun and aims it at Scar. It is then that Scar recalls about his brother who had researched into alchemy to combat against the attacking state alchemists; however, they had been attacked by Solf J. Kimblee, the "Crimson Alchemist." Scar had been heavily injured from the attack, as his right arm had been brutally severed. To save him, his brother had sacrificed himself and had transferred his right arm onto Scar. Shocked upon waking up and seeing his brother's arm on his body, he went berserk and had killed Winry's parents. Before they can kill each other, Edward protects Winry from Scar and interrupts Scar's attack in its tracks, reminding him of when his brother protected him. A concerned Edward consoles a traumatized Winry, whlie Alphonse chases after Scar. As he slowly has her unclasp the gun, he tells her that her hands were meant to give life and not to kill. (Source: Wikipedia)