In a futuristic city called Satellite City, an orphan named Cosmo Hill escapes from a terrible orphanage called the Clarissa Frayne Institute. After his daring escape, he meets a group of strange vigilantes called the Supernaturalists who fight invisible blue parasites that feed on human life force. Cosmo joins their team, but soon discovers that the truth about the parasites and the powerful corporation running the city is far more dangerous than anyone imagined. Together, they must uncover a conspiracy that threatens every person in Satellite City.