"With Scar having taken hostage of Winry, Ed stops Kimblee from using his alchemy long enough for the two to escape. This entire plan goes back to earlier when Ed and company still had Scar restrained. Winry had actually wrapped up Scar’s injured arm, but she refused to forgive him, and Ed had felt even less kind. Scar had then learned about Miles’ goal to change people’s perceptions of the Ishval people, and Scar was glad that there was someone like him. Fortunately for Scar, Marcoh and May Chang had come and told Miles about their need of him to decipher the research documents."