So, this all 's fault. 

She's the one who really got me into Smurf stories.  This is a side drabble to her Grey Stories.  So you will likely have little idea what's going on unless you read her stories first.  So you should probably go do that.  zikore.deviantart.com/gallery/

The tl;dr version is that a second village has been magically created with the express purpose to eliminating the original smurfs.  While the magic copies aren't evil, per se, they are seriously lacking in empathy.