A close call for Denny involving prescription drugs inspires Alan to go after a pharmaceutical company for its unscrupulous advertising tactics. Meanwhile, Carl defends Shirley's 17-year-old granddaughter after she's caught voting illegally, and Jerry and Katie help a girl who was sexually assaulted in a private detention facility.

Alan and Shirley prepare for a fight with the military on behalf of a man whose brother died under suspicious circumstances. Meanwhile, Jerry helps his sister in her search for the identity of the father of her son, who was conceived through an anonymous donor.