Mail from forty years earlier is discovered, and a letter from Homer Simpson's mother's old boyfriend states that he is Homer's true father. Homer sets out to find his supposed new father, leaving Abe behind.
Quest roles:
Tress MacNeille(Ms. Muntz (voice)), Pamela Hayden(Milhouse (voice)), Maggie Roswell(Luann Van Houten (voice)), Michael York(Clayton (voice)), Joe Frazier(Joe Frazier (voice)), William H. Macy(William H. Macy (voice))