In America, sometimes being a hero means breaking the rules. From the beginning, superheroes like The Hulk, Black Panther, Iron Man, Luke Cage, Wolverine and The X-Men have challenged authority and fought for outsiders, in battles that reflect the country's most profound real-world divisions and struggles. From their often controversial origins to recent resurgence in today's blockbuster movies, these rebels continue to redefine heroism for new generations.

Superman, Batman, Captain America, Wonder Woman, Spider-Man and beyond are the foundation of the modern superhero. Since their creation, these all-American icons have endured through decades of war, triumph and scandal, constantly evolving to reflect the country’s changing values in a tumultuous world. From World War II and Vietnam, to Watergate and the tragedy of 9/11, these mythic heroes embody America’s deepest fears and greatest aspirations. This two-part special reveals how superheroes have evolved through decades of history to become a uniquely American mythology.