Cowboy Frank T. Hopkins, who has an Indian mother, was wounded and traumatized for life as US Cavalry scout at the Wounded Knee Massacre and joint Buffalo Bill’s world travelling…

On the brink of perfecting his state-of-the-art matter-shrinking machine, the suburban paterfamilias and indefatigable inventor, Professor Wayne Szalinski, realises that his device truly works, when it zaps both his kids…