The Flintstone Comedy Show

Dino and the Zombies [Pebbles, Dino & Bamm-Bamm] (2x17)

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Mysterious events in the cemetery lead Pebbles, Dino and Bamm-Bamm to solve the strange disappearance of a thief named Blackenrock. The villain planned to pose as the caretaker and bury his stolen loot in the graveyard.