Family Guy Episodes :- Peter Griffin: Husband, Father... Brother?

Chris is fascinated by African-American culture. So, Peter decides that he needs to be taught something about his own culture as well. Peter takes him to an Irish heritage museum. In a genealogy book, Chris finds that one of his ancestors was an African-American. The Pewterschmidts come visiting to Peter’s house. They divulge a secret and pay some money to Peter to keep his mouth shut. Peter accepts the money, but then he becomes aware of something that hurts him immensely.