DISCLAIMER: I don't own any of the major characters of these stories. These are all creations of either Marvel or DC Comics, or both.

AUTHOR'S NOTE: I am not nearly as familiar with the DC Universe as I am with Marvel, so please forgive any errors on my part. I am trying to do my best with keeping things in continuity by reading up on Wikipedia, but I'm not perfect. I hope you enjoy this story.

Part Zero

Norin Radd struggled against the might of the iron-clad being before him. The silver energy of the Power Cosmic flowed from his hands, against his opponent's strange green power bolts. If Norin Radd could, he would be sweating right now from the strain of keeping his enemy at bay. Right now, it was taking all of his energy and willpower to keep from being blasted away by the masked villain.

Norin Radd's opponent cackled. "You have failed, Surfer! Your ragtag forces are no match for my zealous defenders! Look down! More and more of them are falling!"

The Silver Surfer did not look down, for fear of his adversary gaining the upper hand, but he knew what the latter had said was true. However, he was still determined not to let his enemy win. The fate of all existence depended on the victory of the Surfer and his comrades. "You understimate us, Doom. Your own forces are taking casualties for every hero that they defeat."

Victor von Doom scoffed. "I could wipe you all off the face of the planet if I wanted." Behind his metal mask, there was a glint of smug confidence in his eyes. "The only reason I have kept you and your friends alive is for the entertainment of watching you all fight and die all in the vain hopes of defeating me."

The Surfer continued to draw upon more and more of the Power Cosmic to stop Doom. It was beginning to take its toll on his body, exhausting his muscles and making it more difficult to sustain the process. Despite the fatigue that was steadily overcoming him, the Silver Surfer managed a grin. "Do not let your overconfidence be your downfall, Doom."

Meanwhile...

Below the titanic struggle between the Silver Surfer and Doctor Doom, Psylocke wielded her telekinetic katana blade against Sabretooth. The hulking, feral-looking man had tried to kill her once. Well, one of him, anyways. There was no telling if the Sabretooth she was fighting right now was the same Sabretooth that had nearly killed her or the Sabretooth that was her current teammate on the interdimensional superhero team called the Exiles.

As Sabretooth clawed at her face with his left arm, Psylocke cut off the offending arm with a swipe of her psionic blade. Blood streamed from the new wound and the arm began to regenerate. Still maintaining the telekinetic projection of her blade, Psylocke moved cautiously toward Sabretooth. "Creed, you can fight this! I don't know what Doom's done to you, but you have to remember our mission! The fate of the world's in our hands!" Psylocke silently hoped that this was her teammate and not the psychotic Victor Creed she knew better.

Sabretooth looked up at her, as if recognizing Psylocke. As Sabretooth started to grin, Psylocke was unprepared when he prepared to strike her with his remaining whole arm.

"BETSY!" Both Sabretooth and Psylocke turned their heads to see Brian Braddock, also known as Captain Britain, rushing towards them. Brian quickly pummeled Sabretooth to the ground. As he slowly stood up, making sure to see that Sabretooth was incapacitated, he looked at his sister. "He almost killed you. Once. I wasn't going to give him another chance."

"Thank you," Psylocke said. She was interrupted from saying more, however, by the arrival of another familiar presence. Both she and Brian turned to look at the newcomer.

"It is a shame that a mutant of your potential has to die like this," Magneto, the Master of Magnetism said.

...And elsewhere...

"Why do you foolish beings defy Lord Doom?" said the booming voice of Robert Reynolds, also known as the Sentry. "Why do you create chaos in this utopia he has created? Only death awaits you."

Superman and Wonder Woman looked up at the dark green-clad being hovering above them. The bodies of dozens of Doom's guards lay scattered around them. "How can you willingly serve such a horrible being as this Doctor Doom?" Wonder Woman asked, stepping closer to the Sentry.

"BLASPHEMY!"the Sentry bellowed. "What are these lies that fill your heads? I can hear your thoughts. There is not an ounce of truth in your minds!" As he spoke, a glowing field of energy formed around him. "You ungrateful beings must be destroyed."

Before the Sentry could release the enrgy building up around him, Superman flew straight at him, tackling him and bringing him down to the ground.

"You fool," said the Sentry. "None offend Lord Doom and live." With that, the Sentry overcame Superman's grip on his arms and landed a hard punch on the latter's face, sending the Man of Steel flying out of his control backwards and into a concrete wall. As Wonder Woman tried to tackle the Sentry back to the ground, she was greeted by an unpleasant knee to the stomach.

...And on the Blue Area of the Moon...

"By now, I am sure those of you who are watching these events transpire as I am are wondering how this came to be in the first place. Allow me to take you back in time and show you how the champions of separate universes came together to combat a dire threat to not only them, but the entire Omniverse. I am Uatu the Watcher, and I will be your guide in familiarizing you with these recent events. I will remain silent for the most part, and allow you to witness the events leading up to this epic battle without my input."