The Search for WondLa

When a marauder destroys the underground sanctuary that Eva Nine was raised in by the robot Muthr, the 12-year-year-old girl is forced to flee aboveground. Eva Nine is searching for anyone else like her, for she knows that other humans exist, because of an item she treasures: a scrap of cardboard on which is depicted a young girl, an adult, and a robot, with the strange word, WondLa.