Long live the Legion! Inspired by the acts of and lessons learned from the greatest heroes of all time, the Legion of Super-Heroes have gathered together to stop a galaxy from repeating its past mistakes. Why have the Legion of Super-Heroes broken the cardinal rule of the United Planets and inducted Jon Kent, a.k.a. Superboy, into the Legion? What are they hiding? And what does it have to do with Aquaman's long-lost trident? But first, take a trip through a thousand years of DC's future history - navigated by a mysterious figure from the present! The greatest lineup of heroes in comic book history returns with new, fresh stories! Collects Legion of Super-Heroes: Millennium #1-2 and Legion of Super-Heroes #1-6.