BtVs/Angel by M.E. and Whedon. Ghostbusters by Columbia Pictures and the minds of Aykroyd and Ramis. Iron Man the Movie by Marvel and parent companies.
Dedicated to Dragonelf, who supplied the song choice.
Lyrics of 'Iron Man' by Black Sabbath @1971
Sometime very late in the twentieth-century
"Okay, Mr. Winston Zeddmore. You're on the team."
"Oh, hey, can I sign up too?"
"Hmm, what's your name?"
"Daniel Osbourne, but you can call me Oz."
"Hey, Egon, how many seats in Ecto 1?"
The five GhostBusters stood upon the tower facing the female form of Gozer.
"Are you gods?
" she hissed.
"Uh," Oz said, raising his hand politely. "I dressed as Him for Halloween."
The ageless entity simply stared at them for a few seconds in confusion.
"Oh," said Ray. "He means 'no'."
" she screamed, releasing a blast of energy.
The GhostBusters recovered quickly and, after chastising Ray, blasted Gozer's body into nothingness.
Which turned out not to be the end of it because, all too soon, a voice was booming down from the heavens asking them to choose the form of their destruction.
Egon begged them not to think of anything, but that wasn't a simple task for Oz.
The meditation techniques meant to soothe Oz's beast included some measure of acknowledgment, so, rather than use them and risk summoning one of his worst nightmares, the guitarist took refuge in music.
"DAH-dum," he hummed, twitching his fingers in time. "DAH-DAH-dum, dah-dah-dah-dah-DUM-DUM-DUM!"
" boomed the voice down from the heavens.
"What? It's a good riff."
"Yeah, but we know the song and the lyrics.
....Sometime very early in the twentieth-first century
"You don't have to do this," screamed Pepper Potts.
"Yes, I do," answered Tony Stark. "Closing this rift now is the only way I know the future will be safe!"
"I will," he said as he slipped his helmet down and stepped into the vortex. "I'll be in signal range the entire time. I'm now heading towards the greatest concentration of magnetic fields."
Pepper hugged the communication device close to her chest as Tony's voice crackled over it.
"I'm doing my best to correct the imbalance... No... No!"
"Tony, what's wrong? The interference is getting worse."
"Its impossible. The gold connections in my suit are turning to steel
! I can't explain it, I..."
His only reply, for a time, was a long, drawn out scream.
....Back in the twentieth-century
A museum piece, made of iron and lead, that had sat in the same corner for a decade or two, gathering dust, suddenly became aware of a presence in the room.
"I offer you power
," the invisible energy hissed. "If you join me willingly
"Anything," the roughly man-shaped hunk of metal said, tapping into the entity's energy to power itself. "Anything to get out of here and wreak my vengeance on those who left me to rot."
"So be it,
" Gozer's voice muttered as it flowed into the metal and the two beings became one.
The metal shape promptly grew to twenty times its previous size, bursting through the roof and sending priceless artifacts flying through the walls.
That was before it took its first step.
"Iron Man," Peter called from his rooftop position in the 'trap' they'd led the monster into. "We know from the song that you used to be a hero. You're being possessed by the Destroyer! You can fight this. Don't you want to be what you used to be?"
"I used to be a tool," the hulking metal boomed. "Nobody ever asked me if they wanted me to save the world. Nobody asked me if I wanted to risk being sent a hundred years into the past, where I'd sit in the corner, forgotten. You're trying to reach the man inside the suit? Well, that's just not gonna happen. How about you talk to the hand?"
The towering humanoid shape lifted one of its arms straight out in front of it. Its palm began to grow a bright blue.
"Wait?" Winston asked, turning to the GhostBuster next to him. "That thing has energy beams?"
....Back in the twentieth-first century
Pepper Potts was sitting in a chair, sobbing quietly to herself, when someone touched her shoulder.
"Tony," she yelped, jumping to her feet and throwing her arms around him. "You're alive! You're naked, but you're alive! Oh," she said, taking a step back.
"Yes," he said. "I'm okay. The suit was a dead loss though. I had to abandon it somewhere in the timestream, or risk being turned to metal myself. I'm guessing it landed around 1902."
"Oh, are we going to be okay?"
"Absolutely. The transformation fused most of the circuitry so the computer system won't be able to move under its own power. It looks too much like an art piece for any scientists of the time to dissect it. We'll just have to spend some time in antique stores tracking it down and home that the computer's brain won't be too annoyed at me for leaving it in a non-functional body for so long."
Those were his last words before the first of the time storms ripped them apart.
Now the time is here
For iron man to spread fear
Vengeance from the grave
Kills the people he once saved