Lenny Brown is eight years old and can't talk. Except to his mum and his dog, Rocky. When Lenny has to move house and start at a new school, it feels like his whole life is changing, and not for the better. Will he be able to make friends and find a way to fit in? But when Lenny finds a different way to express himself, everyone is in for a big surprise as they find out just how amazing he can be . . .