In this live-action prequel to The Flintstones movie and TV series, the Flintstones and the Rubbles go on a trip to Rock Vegas, where Wilma Slaghoople is pursued by playboy Chip Rockefeller. She is soon met by a man named Fred Flintstone who winds up falling in love with her himself. Meanwhile Fred's best friend Barney has found himself falling in love with a waitress named Betty.