Superheroes have grown older and some retired, beset by doubt, will they reform the JLA (Justice League of America involving Superman, Wonderwoman, Batman, Green Lantern ...)? Public opinion still she wants superhero "old" fair and honest to the limit of the cartoon? This is a new generation, more violent, amoral, praised for its achievements in whatever way, took them on. Go eat the answer, with Mark Waid has concocted a gripping story, almost mystical (reflection on superhero status and image / homework in terms of aging heroes, including Superman that we discover with fifties) served by the stroke of sublime pencil Alex Ross, which is probably one of the best illustrators of comics to this day, if not the best.