 Hank Hill is a proud and true American. He loves his job as a propane salesman, and respects and loves his family. But one day, after his son Bobby receives a black eye from a baseball game and Hank is heard raising his voice at the Mega-lo Mart, some women come to suspect Hank abuses his son. Word of mouth gets around and soon Hank finds himself under investigation by a skinny, neurotic social worker.