Young Amanda James befriends an alien creature whom she finds to be living in a ramshackle building in the grounds of her parents' new house.
She then learns that Skelly the alien comes from a sweet little planet known as Laktose, situated in the distant galaxy of the Milky Way, and he has been stranded on Earth since his space-egg crash-landed many years earlier.
Amanda also discovers that her new friend can mould his body into different shapes and, once he becomes disguised as a backpack with rabbit features, the duo embark upon a series of adventures, often in quite hilarious circumstances.