Arthur is a precocious eight-year-old boy whose mother is a B-list celebrity more concerned with her bank account than with her son's development. Then an enigmatic young nanny introduces him to a world he never knew existed.

Arthur is a precocious eight-year-old boy whose mother is a B-list celebrity more concerned with her bank account than with her son's development. Then an enigmatic young nanny introduces him to a world he never knew existed.

Arthur is a precocious eight-year-old boy whose mother is a B-list celebrity more concerned with the state of her bank account than with her son's development. Then an enigmatic young nanny named Missy introduces him to a world he never knew existed.