I imagine that if they edit anything it will just be toning down the large amounts of blood that you get from time to time. But even that might stay. Adult Swim has gotten more and more lax about what is and isn't acceptable over time. I suspect it should remain virtually untouched.
Anyway, here's ANN's synopsis of Full Metal Alchemist:
After losing their mother, Alphonse and Edward Elric attempt to bring her back using the forbidden science of human alchemy. However, alchemy operates on the theory of equivalent trade, and breaking the human alchemy taboo carries a heavy price. Ed loses his leg, and Al loses his life. Ed is able to seal Als soul inside of a huge suit of armor, at the cost of his arm. Years later, Ed (now with two mechanical limbs) and Al (still trapped in the armor) leave their childhood home, each brother concerned with the others happiness. They are searching for any information on the fabled Philosophers stone, hoping it will allow them to regain their old bodies. Ed, who has a natural talent and skill for alchemy, soon becomes nationally certified. He is soon known everywhere as the "Fullmetal Alchemist."
Anyway, I offer one caveat about FMA for the newbies. FMA starts off strong with two very strong episodes to introduce the show. Then it goes in the past and spends the next several episodes with what you might call villains of the week. It does seemingly meander a little bit, but actually almost all of those stories in the past are very important and come back to influence the present in a big way. So stick with it through those episodes. Episode 7 is the first sign of brilliance and once you hit the teens, the show really takes off big time and never slows down for the rest of the 51 episode run.
The other thing about FMA is that it is HIGHLY unpredictable. It will surprise you. Constantly.
Characters:
EDWARD ELRIC
The Full Metal Alchemist. Pictured above at 15 years of age, he is the elder of the Elric Brothers. Hot-tempered and highly sensitive about his height, Ed lost an arm and a leg trying to transmute his mother. With new artificial limbs called "automail," Ed sets out to become a State Alchemist to further his quest to find the Philosopher's Stone--the legendary stone that allows alchemists to defy the normal laws of alchemy. His purpose: to undo his and his brother's sins and recover that which they had lost.
ALPHONSE ELRIC
The younger of the Elric siblings, Alphonse is a walking suit of armor that houses his now detached soul. Because of his imposing appearance, Al is often mistaken for the Full Metal Alchemist. He is extremely loyal to his brother but somewhat naive and pure-hearted. Though not a famous State Alchemist like his brother, Alphonse is still an extremely talented alchemist in his own right. Together with his brother, he searches for the Philosopher's Stone in the hopes that he can restore his beloved brother's lost limbs.
WINRY ROCKBELL
Childhood friend of the Elrics. She is a talented young engineer who thinks of tools the way most girls her age think of clothes. She is also Edward's automail mechanic and is more than willing to give Ed a scolding for his frequently reckless behavior.
ROY MUSTANG
The Flame Alchemist. Colonel Mustang is an officer in the military and is highly ambitious in his quest to climb the military ladder. Mustang is the Full Metal Alchemist's superior officer and is perhaps the Elrics' closest ally in the military. That said, Edward would like nothing more than to punch him in the face.
MAES HUGHES
A ranking officer in the Investigation Department of the military, Hughes is not an alchemist himself but a good friend of both the Flame and Full Metal Alchemists. Proud of his young daughter to a definite fault, Hughes' good nature and strong will make him an instantly likeable guy. A talented investigator, Hughes is a critical source of information for both the Elrics and Roy Mustang. When forced into combat, Hughes is highly skilled with small throwing knives.
LUST
A mysterious woman in black. Her motives are uncertain, her methods decidedly devious, Lust will cross paths with the Full Metal Alchemist on many occasions. It seems she is after the Philosopher's Stone, as well, but her purpose and identity are both a mystery.
GLUTTONY
Mysterious rotund man. Lust's right hand man, Gluttony has an insatiable appetite and seems willing, and able, to eat anything he pleases.
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So watch Full Metal Alchemist.......
....or else.
