It is Corduroy's job to watch over Lisa's garden. Oh no! A puppy digs up the beans! What will Corduroy do?

When Lisa takes Corduroy to the theater for the first time, Corduroy heads out on his own to explore the whole building, including the dressing rooms, orchestra pit, and prop table.

Maestro Petrini is the only mouse at the Metropolitan Opera House, the perfect place for a music loving mouse and his family. The only danger is Mefisto, the opera house cat, who hates music and mice--until one day when he listens to The Magic Flute and becomes enlightened.