It All Comes Down to this! Who was so powerful to bring Galactus to his knees and break the Hulk's leg? What prompted Spider-Man to put on that black costume or Iron Man to change his armor? Where were Marvel's greatest heroes and villains taken? When would the heroes realize Dr. Doom's treachery? Why was the entire Marvel universe threatened? How did the greatest assemblage of heroes and villains survive the Beyonder? The first mega-crossover of its kind is collected in its entirety, revealing those answers and much, much more! It's one of comic book history's biggest stories featuring the very best Marvel has to offer!