Arnold suspects that Kimberly has an eating disorder when his slender sister is secretly gorging herself, but not gaining any weight. Arnold seeks Drummond's help in confronting Kimberly with her problem and the family comes together to help her fight the eating disorder, bulimia.
Elenco: Conrad Bain , Gary Coleman , Todd Bridges , Dana Plato , Mary Jo Catlett , Danny Cooksey , Charlotte Rae , Dixie Carter , Mary Ann Mobley .