Episode 19, "The Truth Behind Truths"
*****SPOILERS*****
Synopsis: Devestated by the secret of the Philosopher’s Stone, Edward and Alphonse hole themselves up in a room. Maria Ross urges them not to give up. Looking at a map of Central, they determine that Philosopher Stone research must have been done in Laboratory 5, which was supposedly shut down, which is next to a prison. The brothers are told to stay put while it’s investigated, but they sneak out during the night to investigate on their own. Scar finds the notes and decodes them with his arm (wtf). Edward makes his way into the lab while Alphonse stays outside. After avoiding various traps, Edward finds a chamber where he is confronted by an armored guard. Another guard attacks Al outside. Meanwhile, Winry realizes she forgot to put a screw in when she repaired Ed’s automail.

