This is the story of Harper Rose, a local Sheriff hunting down killers in the United Cities of America. Harper lives in a world set one thousand years in the future, a world where climate collapse has come and gone, but Harper doesn't know that. In fact, nobody does. In Harper's world, everyone prays to the Goddess Gara, but no one seems to question why. Season 1 follows Harper as she hunts down a killer that is killing women all over New York City, with the help of law legend Sheriff Kane. 
In Season 2, Harper is back in her idyllic hometown on the coast, just taking it day by day... until someone goes missing and strange things start happening that no one can quite explain. 
In Season 3 everything changes and Harper has to come to grips with the fact that the world she once knew, was not what it seemed.