Fullmetal alchemist. Vol. 6, Captured souls [episodes 21-24]
While Al defends himself against the transmuted Barry the Chopper, Ed discovers more about the dark alchemic experiments deep within Lab Five. But the biggest threat of all may be Ed's own morality, as he's tempted with the ultimate power he's been seeking for years. Hughes issues an order to allow Armstrong, Bloch, and Ross to investigate what's going on inside the 5th laboratory. Now Ed sees that Tucker was hiding the fact that there were human...