Rip and Rap are twin sheepdogs who look exactly alike except for one extra stripe on Rap's tail. But when Rap gets a mud stain on his tail, it looks just like Rip's, and nobody in the farmyard can tell the two apart. Though similar in appearance, Rip and Rap are quite different in character, and Rap causes quite a commotion when he decides he doesn't want to be a sheepdog.