A Random

SCIFI.radio story

Earth develops a temporal echo across multiple timelines creating duplicates of everyone on Earth 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 who tend to stutter under pressure when confronted by the army, navy, air force, space force and/or marines , but scientists create a new weapon which kills them all.
The End.and then they kill us all.
The End.