Руби accidentally discovers a powerful and ancient artifact on the planet Tatooine, which turns out to be a Sith mask.

As she unwittingly puts it on, she begins to experience disturbing dark side visions and accidentally uses the mask's abilities in public, drawing the attention of the Sith and earning the ire of the other idols.

As the dark side slowly corrupts her, she is forced to deal with the consequences of using such powerful technology, and must confront her own morality and choices before the Sith take control of her completely.