Civil War

The creation of the Superhero Registration Act—a law that forces heroes to reveal their secret identities and work solely for the government—divides the Marvel universe. Tony Stark, wanting accountability, supports the act, while Captain America, who knows that the government can’t always be trusted to do what’s right, forms a secret resistance group. When the two groups come to blows, nobody wins.
Tate Austin: The relationship between Reed Richards, scientist, and Tony Stark, engineer, and their conversations about ethics yield some of Marvel’s all-time best writing.