Scientist Dr. Arthur Bindlebeep is the head of the family and a high school teacher. He and his wife, Norma, try to be model parents while learning a few things from their three children: 16-year-old Angie, 12-year-old Roy and 6-year-old Katherine and their dog Guinness. At the same time, Arthur's own parents, Lester and Louise, still have some lessons for him.