Bill and Tammy McGrath of Hamlin, New York, have three beautiful young children, and their middle son, Aiden, 5, was recently diagnosed with Type 1 diabetes. Managing his illness is very anxiety-provoking for Tammy, because she saw her father die of diabetes at just 46 years of age. She sees Aiden's diagnosis as her worst fears realized, and mealtime has become a battlefield. Aiden makes power plays, refusing to eat, which not only threatens his own health and frightens Tammy, but causes problems for both parents in adjusting Aiden's insulin levels. The other kids, Liam, 4, and Paige, 9, feel their parents' distraction and are frustrated by it -- Paige hides out in her bedroom and Liam acts out aggressively. Jo pinpoints Bill and Tammy's problems communicating effectively and enforcing discipline -- their versions of timeouts are useless. Can she help Bill and Tammy regain control of their family?