The Quest for Cosmic Boy begins! The Legionnaires have lost their longtime leader, Cosmic Boy-but was he captured by enemies or did he flee responsibility for his "war crime"? The Legion's newly elected leader makes a hard decision her first day on the job and sends out teams of Legionaires in search of Cosmic Boy. Will they be prepared for what they find?
The Quest for Cosmic Boy, part 2 of 5. The United Planets blames Cosmic Boy for war crimes! Star Boy and Sun Boy must clear his name. But they'll have to outsmart a certain matter-eating prosecutor and overcome a shocking development on planet Winath that threatens Lightning Lad's family.
The Quest for Cosmic Boy, part 3 of 5. Why is Cosmic Boy wanted for war crimes? Why is his biggest rival, Mekt Ranzz, defending him? Will special prosecutor Tenzil Kem be forced to eat his own words? And what is the Cult of Validus? There are shocking developments on the lightning world of Winath!
The Quest for Cosmic Boy, part 4 of 5. The quest for Cosmic Boy continues on the war-torn world of Lallor where Timber Wolf, Atom Girl and Shadow Lass are suspected of assassinating the planet's President! But they would rather face every cop and soldier on Lallor than fight the walking H-bomb known as E.R.G.!
The Quest for Cosmic Boy, part 5 of 5. The quest for Cosmic Boy concludes as Brainiac 5's secret is revealed! Plus, Lightning Lad's place in the Legion gets a shocking change, Supergirl spends her last day as a Legionnaire, and the trans-temporal menace of Evolvo-Lad intensifies!