Gangster Arnie Kurtz is moving into Chicago's South Side and Eliot Ness very much wants to nab him, putting a 24 hour watch and tapping his phones. The operation is put in danger however when Kurtz inadvertently becomes part of a public health emergency. Against his better judgment - but at his wife's insistence - he agrees to let her brother Benno Fisk deliver $100,000 to a New York mobster. Unknown to anyone, Benno has contracted Parrot Fever from a recently acquired pet and collapses soon after his arrival.

When mobster Charley Radick learns that he has leukemia and only a short time to live, he decides the time has come to visit his daughter, Margaret, now a young woman. When Charley had gone to prison for a 10 year stretch, he had left her with the Wilsons but when he got out, he decided to concentrate on moving up in the rackets and left the girl with them. When he visits the Wilsons however, he's told that Margaret left some three years before. When Eliot Ness learns that Radick is dying, he asks him to come clean and give him the organization's books.