Grandpa Clumsy has been up to his old time traveling shenanigans again and upset history when he inadvertently brings back a butterfly from prehistoric times. Who knew a single butterfly not flapping its wings would cause a chain reaction through time changing our modern day into the stone age? Helen must take matters into her own hands and rediscover all of civilization's greatest discoveries that never happened, while Grandpa stays back home working at reviving our little winged friend!