The Flintstones are at it again. The Flintstones and the Rubbles head for Rock Vegas with Fred hoping to court the lovely Wilma. Nothing will stand in the way of love, except for the conniving Chip Rockefeller who is the playboy born in Baysville but who has made it in the cutthroat town of Rock Vegas. Will Fred win Wilma's love?
Two losers from Milwaukee, Coop and Remer, invent a new game combining basketball with the rules of baseball. When the game becomes a huge success, they, along with a billionaire's help, form the Professional Baseketball League where everyone gets the same pay and no team can change cities. When a rival owner wants to institute major rule changes, Coop and Remer's team is the only one standing in the way.