Collecting Legion of Super-Heroes stories written by Geoff Johns! First, in the co-feature from ADVENTURE COMICS #0-4, Lightning Lad travels to the prison planet of Takron-Galtos to confront his brother, Lighting Lord, Sun Boy and Polar Boy team up to figure out what's up with a menace trying to destroy the universe, and Dawnstar is on the trail of the person who's been causing trouble for the Legion. This issue also includes a SUPERMAN/LEGION tale from ACTION COMICS #864, the Legion's appearance from ACTION COMICS #900 and a story starring Mon El story from ACTION COMICS ANNUAL #10.