Life is proving difficult for Nathan Trotter. He's moved to a new house, and a new school. He's got a new baby brother who's taking up all of his mum's time, and Nathan's dad has a new job which means he's hardly ever home. Things don't seem as if they could be much worse. And then he wakes up one morning to find he's turning green... How can Nat go to school when he looks like something out of Doctor Who? And why won't his family listen to anything he says? This hilarious tale follows Nat's attempts to deal with school, bullies, family, friendships and turning into an alien.