Arnold's poor dental checkup and a visit by Drummond's health-conscious sister, Sophia, launches Drummond on a campaign to have "junk" food machines banned from Arnold's school, even though Arnold's drive for his class' presidency may depend on keeping the machines in place.
Elenco: Conrad Bain , Gary Coleman , Todd Bridges , Dana Plato , Mary Jo Catlett , Danny Cooksey , Charlotte Rae , Dixie Carter , Mary Ann Mobley .