Fullmetal Alchemist: Brotherhood - episode 54 - 24 Apr, 2010

Upon seeing through Envy being disguised as Mustang, Hawkeye shoots Envy until the real Mustang arrives and mercilessly incinerates the homunculus, reverting him back to his parasitic form. Before Mustang can kill Envy, it is then that Edward, Hawkeye, and Scar persuade him to let go of his anger and his need for revenge, for Amestris cannot be ruled by someone consumed with hatred. Envy becomes outraged by Mustang's change of heart and rants about why everyone does not kill each other, trying to goad them into doing so by pointing out all of the terrible things they have done to each other. Edward determines that the reason why Envy hates humans is because he is jealous of their capacity to continue living on, despite all the abuse they take. Humiliated and insulted by how Edward understands him, Envy commits suicide by tearing out and destroying his own philosopher's stone. Meanwhile, the Armstrong siblings begin to gain the upper hand in their battle against Sloth. Izumi arrives in Central, allied with the Briggs Fortress soldiers, to participate in the coup d'état. Elsewhere, Hohenheim confronts Father alone. (Source: Wikipedia)