礦場有錢人Hiram Gummer發現他的銀礦場因為地底的殺人巨蟲造成許多離奇死亡的案件，雇用神槍手Black Hand Kelly以解除這場危機。
When dandy Hiram Gummer discovers that a series of strange deaths at a silver mine he owns was caused by gigantic killer worms that burrow underground, he calls in expert gunslinger Black Hand Kelly to save the day.
