FMA is the story of 2 brothers, Edward Elric(older) and Alphonze Elric(younger, by one year) They practice the art of alchemy, which applies the rule of equal trade, which allows alchemists to creat things from other things, or rebuild broken things. Their mother died, and they desided to try and revive her using alchemy, which is against God and is forbidden (taboo) they fail and Alphonze loses his body, and Edward loses his leg. Edward is forced to sacrifice onw of his arms to bind alphonze's soul to a set of armor. The story is about their search for a way to return themselves to their normal bodys. It does rival naruto, but i wont place one or the other in higher standards.