A meteor hits and releases magic alien spores that turn into superintelligent bulletproof mutant armadillos who burrow up into the butts of people while they poop and take control of their minds, then make them slave away in the meteor crater mining alien minerals that'll be used to construct a powerful transmitter that will summon the ubercosmic Space Armadillo Armada who will come with a giant ion cannon that causes the sun to explode and only Will Smith can save us. That'd really be cool.