S The Man Called Flintstone

When top agent Rock Slag (who resembles Fred) is put out of commission, his organization recruits Fred and has him take Slag's mission: To go to Eurock and capture the evil mastermind, Green Goose. Fred agrees, not knowing the dangers of the mission he is undertaking. Not only are enemy spies out to eliminate him, but he has to keep his wife and friends from learning his secret.

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S06E28 - Little Big League