DC Retroactive: JLA - The '70s (2011-) #1

Writer Cary Bates reveals the untold story of how super villain Kanjar Ro nearly destroyed life as we know it when he set out to conquer Earth—Earth-Prime, that is. It's up to the Justice League, Adam Strange and a very special DC legend to save the 1970s!Plus: a classic tale originally published in the 1970s!