Ten Little Flintstones

An alien spacecraft lands unseen in Fred’s backyard. The craft discharges ten clones of Fred, who have been brought to earth to gather information ahead of a planned alien invasion. The staring clones have been programmed to speak only one Fred-phrase: “yabba-dabba-doo.” Taken of course as the real Flintstone, the clones cause Fred no end of problems, at home, at work, and everywhere.