Bill and Charlie are called to a domestic. Bill witnesses a father, Sean O'Connor, hit his son and gets emotionally involved to the point where he has a complaint laid against him for assault. Although he's warned away from the case by Virginia, he feels the two kids in the family should be helped. The mother, Maralyn, is an alcoholic and Bill has little sympathy for her. The situation is out of his hands until it becomes a murder investigation with Sean found dead in the house. Meanwhile, Gerry gives Vince the news that she is pregnant.
