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The family gathers to celebrate the 98th birthday of Cliff's Great-Aunt Harriet "Gramtee" McCutcheon (Minnie Gentry). Although most of the family members are enthralled by Gramtee's fascinating stories about the old days (both bad and good), Olivia (Raven-Symone) is at first sullen and unresponsive, angered that the party has spoiled her plans to go to the zoo. Ultimately, Denise (Lisa Bonet) takes charge of the situation, proving beyond doubt that she is taking her newfound maternal responsibilities very, very seriously. This is the final episode of The Cosby Show's sixth season.