Teen heroes of the future unite to face cosmic threats in the first volume of this foundational Legion collection, including the legendary Great Darkness Saga. In the distant future, a new generation of heroes rises to protect the galaxy. The Legion of Super-Heroes is a team of young champions from across the universe, each bringing unique powers, personalities, and ideals to a shared mission: defending a future constantly under threat. But when a mysterious force begins to spread across the stars, the Legion faces a challenge that will push them--and their alliances--to the breaking point. Written by Paul Levitz, this collection features a defining era of Legion storytelling, combining action, character drama, and epic science fiction as the team confronts one of its greatest enemies. Collects Legion of Super-Heroes #284-311, Legion of Super-Heroes Annual #1-2, DC Comics Presents #43 and #59, and a story from The Best of DC: Blue Ribbon Digest #24 and World's Finest Comics #284.