Written by Jeph Loeb, pencils and cover by Rob Liefeld, variant cover by Joe Madureira
Marvel's greatest heroes sacrificed themselves to save the world from the deadliest threat they had ever faced -- Onslaught! The lives of the Fantastic Four and the Avengers were saved only when Franklin Richards created a parallel universe, where we found those heroes, reborn! But this world has long since merged back into our own, and the evil Onslaught -- forged from the most vile parts of Magneto's and Professor X's psyches -- has been presumed long dead... but now he, himself, is reborn -- and he's bringing fragments of the other universe with him!.
