 Fred s at it with inventions again to make him rich quickly. This time, he invents a fat-reducing drink so he can lose some weight. However, as he takes too much of this stuff, he shrinks to about a feet high. Barney brings him to a doctor, but the latter say only time will cure him. Wilma must accept the fact for the moment, as well as Pebbles who takes him as a toy. Barney comes with a plan to make a ventriloquist s act at the "Ed Sullystone Show" using Fred s small height as a puppet...