All is not well with the Smurfs. Someone wants to build a wall around
the Smurfs' Village! When Papa Smurf observes that his Smurfs are
fighting with each other, he decides something needs to be done about
it, and that's when the trouble starts. Papa Smurf creates negative
versions of the Smurfs. They're just like the regular Smurfs, except
their clothes are a little darker and they don't have any of the good
qualities of the real Smurfs. For example, a black-haired Smurfette has
all of Smurfette's bad habits, and none of what's good about Smurfette!
When the Smurfs meet the so-called "Grey Smurfs," they want to be
friends. But the Grey Smurfs are only interested in going to war against
the Smurfs, conquering them, and turning them all into their slaves. Can
Papa Smurf fix this mess he created?