Pebbles brings Dino and Bam Bam with her to babysit Mrs. Goldnugget's son, Bratrock. The child leads them all on a merry chase, even assuming the guise of a ghost, Big Bronco Billy.
After strange-looking aliens chase Pebbles and Bamm-Bamm through the rose-covered terrain of Scary Valley, the kids inadvertently solve the mystery of the eerie place.
Pebbles, Bamm-Bamm and Dino try to retrieve their baseball which gets in an abandoned house. In order to succeed they have to dodge Count Rockula and his monsters, who want to dispose of them.
Pebbles decides the Bedrock Bijou, an abandoned theater, would be the perfect venue for the school's talent show. Further investigation reveals Gordo, the great puppeteer, has been living there, frightening people away with his disguises.
A trip to the seashore turns into a nightmare when Pebbles, Bamm-Bamm and Dino confront the beast of the beach. After a long chase, Dino knocks the creature down and his head falls off revealing Fingers Sandstone, the notorious safecracker.
Pebbles and her friends discover the reason for the strange disappearance of a recording studio's star singer. Disguising himself as K.B. Terror, jealous rival singer Englechert Humperfink kidnapped the star and stole his new hit song, hoping to win the Grammy Rock Award himself. Instead, Humperfink receives a "vacation" in the Bedrock jail.
While visiting the Tutrockamen exhibit at the museum, Pebbles loses her ring in a mummy case. Later that night, Pebbles, Bamm-Bamm and Dino sneak into the museum, where a mummy chases them!
Pebbles, Bamm-Bamm and Dino get lost during a visit of a candy factory and end up at a mine. Accidentally Dino goes into the mine. Pebbles and Bamm-Bamm must find him while dodging a hissing lizard monster.
Pebbles and Bamm-Bamm discover a notorious thief, Rock Island Red, disguises himself as the legendary woodsman, Paul Bunstone, to keep people away from his lair.
During a thunderstorm, Pebbles and Bamm-Bamm seek shelter at Richstone Manor. Once they arrive, however, two carpenters tell them that the wealthy family is not at home. Pebbles is suspicious.
