Alvin, Simon and Theodore have been adopted by and now live with their long-suffering human manager and songwriter David Seville. Although the three boys mean good, they often find themselves getting into trouble, usually because of Alvin’s impulsive nature and his harebrained schemes. Then of course there is their babysitter Miss Miller and her own trio of girl chipmunks: Brittany, Jeanette and Eleanor; collectivity known as the Chipettes.