Angus is a gentle alien who loves growing things in his space garden. But his world is turned upside-down by the unwelcome arrival of Alvin, a cocky and boastful alien from a different planet. Until Alvin' s clever-clever tricks misfire and turn him into a minute, pin-size creature, Angus helps his visitor recover - if he promises to behave better and learn some manners. Maybe the two aliens will end up friends after all . . . .