The Flintstones : Treasure of Sierra Madrock (1966)
Directed by William Hanna / Joseph Barbera
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Synopsis by Hal Erickson
A couple of phony miners sucker Fred and Barney into purchasing a fraudulent gold claim. Hoping to get their husband's money back, Wilma and Betty cook up a sting operation whereby they will convince the crooks that the mine is valuable after all. Unfortunately, Fred and Barney fall for their wives' prevaracations as well, and they refuse to sell back the mine at any price!