It is the task of an earnest and square young man named Aaron Green (Jonah Hill) to fly to London and in exactly three days get Snow (Russell Brand) to New York for a "Today" appearance and then to Los Angeles for a comeback concert at the Greek Theatre. "Get Him to the Greek" is the story for those three days, and nights, which pass in a blur for the innocent Green. They are a blur for Aldous as well, but then, that's his lifestyle.