and destroy the planet.
In this case, it's the evil Badiyanu trying to steal the energy from the dreams of children to feed her Black Dream Hole and... you get the idea. Since the focus of the story is children, there are some memorable glimpses into the childhood of the Sailor Senshi, with flashbacks in the opening sequence so adorable that they are really the highlight of the entire movie.
Because of this childhood theme, Chibi Usa also plays a larger part in this film than in the others. Here she fills the same role as she did in the Super S season of the television series: she meets a strange boy who she helps and later seems to have a bit of a crush on. Like the rest of the movie this seems recycled from Sailor Moon and leaves no real impression on the characters or the overall story.
As a stand-alone movie, Super S manages to barely entertain as it rehashes all of the worst elements of Sailor Moon. As part of the whole saga, its only worth is a few cute moments of the Senshi out of uniform. If you're looking for a worthwhile Sailor Moon story without a large time commitment, I would recommend Sailor Moon S instead of wasting your time on this one.