Today, the Justice League of America is legendary—the greatest superhero team ever established. But a decade ago, the League's founders were just five individual crime-fighters. Then, a threat too large for just one hero brought them all together, setting the foundation for the most famous team-up of all time. Acclaimed storytellers Mark Waid (Kingdom Come), Brian Augustyn (Batman: Gotham by Gaslight), and Barry Kitson (Legion of Super-Heroes) take the JLA back to its roots in this fan-favorite storyline. Collects JLA Year One #1-12, with an introduction by Mark Waid.