Though this was the last episode of the original series, there's no sense of finality or closure. It's just a routine episode. It probably wasn't even the last one filmed; it looked like it was just a leftover from the pre-Gazoo arc.
When Grampa Flintstone sends a letter that he's coming to visit, the family pulls all his old gifts out of hiding. Fred comes across his old diary from Stone World War I, when he was the leader of Rocky's Raiders (though there were only the two of them). As Fred reads it aloud, we see the cast playing the characters from the past. Fred and Barney play Rocky Flintstone and fellow raider Reggie Vanderock (though they're essentially just Fred and Barney in uniforms). They have more fun with the lady's roles. Betty plays French waitress Fifi LaRock, complete with accent. Wilma plays superspy Mata Harrock, whom the men must rescue from evil Baron Von Rickenrock. There are some nifty verbal and sight gags, including a clever aerial maneuver by Rocky. It's a fun well-paced episode overall, the only drawback being a rather dopey ending. But all in all, it's a likeable episode to go out on. (Bonus laugh: The closed-captioning misspells Betty's French character name as FeFe. Sacre' Bleu!)
When Grampa Flintstone sends a letter that he's coming to visit, the family pulls all his old gifts out of hiding. Fred comes across his old diary from Stone World War I, when he was the leader of Rocky's Raiders (though there were only the two of them). As Fred reads it aloud, we see the cast playing the characters from the past. Fred and Barney play Rocky Flintstone and fellow raider Reggie Vanderock (though they're essentially just Fred and Barney in uniforms). They have more fun with the lady's roles. Betty plays French waitress Fifi LaRock, complete with accent. Wilma plays superspy Mata Harrock, whom the men must rescue from evil Baron Von Rickenrock. There are some nifty verbal and sight gags, including a clever aerial maneuver by Rocky. It's a fun well-paced episode overall, the only drawback being a rather dopey ending. But all in all, it's a likeable episode to go out on. (Bonus laugh: The closed-captioning misspells Betty's French character name as FeFe. Sacre' Bleu!)