The Flintstones Meet Rockula and Frankenstone

On the Make A Deal or Don't game show, Fred wins the big prize. He and Wilma announce a vacation with Barney and Betty to Count Rockula's castle, which has been turned into a spooky tourist resort in Rocksylvania. The trip promises a fun-filled family getaway, though it hints that danger may lie ahead.

The group travels to Count Rockula's castle in Rocksylvania, now a haunted-looking tourist attraction. They arrive with vacation spirit, unaware of the menace lurking inside. The eerie setting foreshadows the forthcoming nightmare.

While exploring the castle, Fred and Barney accidentally discover Rockula's old laboratory where Frankenstone lies unfinished and dormant. The discovery raises immediate questions about the castle's secrets. A window is left open in their haste, setting the stage for the event to come.

Lightning strikes the lab's machines, bringing Frankenstone to life and waking Rockula from a 500-year sleep. Chaos erupts as the two monsters emerge, scattering the visitors and declaring their threat. The castle becomes a battleground as the heroes try to escape the danger.

Rockula reveals himself to Wilma, but she initially mistakes him for the hotel manager, Mr. Silika. When he shows his true form, he transforms into a bat, heightening the danger and confusion. The revelation kickstarts a chase through the castle.

Fred, Barney, and Betty discover Wilma is missing and begin a long cat-and-mouse pursuit across the castle's corridors. They push through darkness and traps as Rockula and Frankenstone hunt them down. The group clings to hope of finding Wilma and escaping intact.

Rockula corners Fred for a decisive confrontation. Barney, wearing a werewolf mask, suddenly appears and frightens Rockula away, giving Fred a chance to regroup. The moment shifts the balance and pushes the chase toward a final showdown.

In the climax, the bat statuette Fred wields turns out to be the switch for a trapdoor to Rockula's laboratory below. Rockula and Frankenstone plunge through the hidden door as the Flintstones and Rubbles escape back to Bedrock. The danger seems to be contained for the moment.

Back in Bedrock, Wilma invites Betty and Barney to stay for dinner and leaves the three of them in the living room while she goes to cook. The family settles into a moment of ordinary life, unaware that Rockula has just flown into their world. The scene contrasts domestic peace with the earlier terror.

Rockula, in bat form, flies from Rocksylvania to Bedrock and begs Wilma to marry him, promising a life of luxury if she agrees. Wilma pretends to consider the proposal but immediately starts nagging him about chores and upkeep. Disheartened, Rockula reverts to a bat and flies off for another 500 years of rest.

Barney laughs and praises Wilma for standing up to Rockula, quipping about the real truth of married life. The playful remark underlines the film's lighthearted take on relationships and teamwork. With the immediate threat deflected, the families can resume life back in Bedrock.