The latest episode of ‘Supergirl’, “Bunker Hill,” showed Nia Na get a step closer to the superhero, Dreamer. Comicbook.com says it also revealed some other important information about Kara Danvers’ CatCo protege. At the beginning of the episode, fans were also intro-ed to the truth behind Nia’s sleeping spells. She apparently has highly vivid dreams of a precognitive nature.