In 2049 Atlanta, Georgia, a grandmother and her grandson run a private detective agency in a world with flying cars, holograms, drone surveillance, mandatory senior meds, and an authoritarian government without a Bill of Rights.
Dorothy Saunders, or Grams, and Teddy, an illegal android, are members of the Underground and work against the state to abolish annual home inspections and establish democratic elections.
They appear to their neighbors as a fiction writer and a human college student, but Jack, Dorothy's husband, created Teddy before his death. Now, Teddy hugs Grams at least three times a day, and they work together solving P.I. cases for extra cash as they expand their Underground network.