Pebbles and Bamm-Bamm are expecting their first child, prompting the Flintstones and Rubbles to visit them in Hollyrock, where they'll stay in a new RV rented by Fred. As Pebbles' due date approaches, her friends and family, including her mother-in-law Pearl Slaghoople, fuss over her, excited to become grandparents.
Hollyrock-a-Bye Baby
The Flintstones and the Rubbles discover that their kids, Pebbles and Bamm Bamm, are expecting a new addition to their family.