 Billy gets robbed by some black hoods while driving his taxi around downtown Los Angeles one night. When the police don t take an interest in his case, he investigates himself to find the muggers, much to the worry of Alison, while racist comments from him make Rhonda angry and she has to teach him some lessons about black people in America. On Jake s birthday, he is visited by his long estranged mother Stella Rivers, who annoys him greatly. Meanwhile, Jane and Michael attend a boring Lamaze class.