A Random

SCIFI.radio story

Earth unleashes a cosmic plague, threatening all life in the universe that has a y in their name who want to plug us into a power grid and use us as living batteries even though they can all do credible singing impressions of Ethel Merman and might be overpowered by a bunch of Elvis impersonators , but scientists create a new weapon which kills them all.
The End.and then they kill us all.
The End.