When sweet little Charlotte finds a homeless little kitty seeking shelter and calling for help, she convinces her mother and father to bring the forlorn creature into their cozy home. After diligently seeking to find the true owner of Mrs. Brown the cat, Mother and Father resignedly allow her to stay. However, day after day, Mrs. Brown makes her presence known to the family in the most challenging ways. Just when Mother has had enough of this mischievous cat, Mrs. Brown proves her worth in the most genius and heroic way, cementing her spot in this home and family!