When alien "Sky" creates planet Earth as part of a school project, she's delighted by her success. Those dinosaurs roaming about the place are top-mark material! Then humans sweep in and it's farewell dinosaurs, hello destruction. This disappointing evolutionary twist calls for drastic measures: Sky, the laziest student in class, is going to have make an effort, go down to Earth and fix humanity. Taking the form of an eleven-year-old school girl, Sky is baffled by the nonsensical rules of social convention and humanity's determination to mess everything up. Dinosaurs never had this problem! When googling missiles on the school's computer and a disastrous attempt to free the giraffes on a visit to the zoo don't work out, Sky finds herself co-opted into Eco-Club. Eco-Club's ambitions might be small, but maybe (just maybe) Sky is about to learn that humans aren't a complete disaster after all.