While trying to teach Chris about his Irish roots, Peter stumbles upon Nate Griffin, a black man in his family tree. Peter tries to embrace his new-found heritage, but can’t quite get the hang of it. When Lois’ father, Carter Pewtershmidt, sits the Griffin kids down for a look at his family genealogy, a dark secret is uncovered.
Quest roles:
Gary Cole(Principal Shepherd (voice)), Kevin Michael Richardson(Tanned Old Man (voice)), Wally Wingert(Man (voice)), Meredith Scott Lynn(Brenda / Marcie (voice)), Tara Strong(Jenna (voice))