The Marvel Zombies were successful in using Mr. Fantastic's transporter to reach an alternate New York. Terrified city folk attempted to enlist the help of the Ghostbusters. Even they fled in terror.
"What does the sign say?" demanded Pete. "Does the sign say 'Zombie Busters?' I don't think so!"
The Men In Black were soon called in as well.
"This is some busted up zombie shit, these ain't aliens," said Agent Jay.
It took the combined blasts of the proton cannons and that cool pen gun thingy to take care of the Marvel Zombies, but thankfully the world was saved.