This parody of low-budget 30s detective movies typifies British heroism. Teutonic villain Otto von Brunno and his evil mistress crash their plane in the English countryside and kidnap Professor Fenton who has discovered a formula for making synthetic diamonds. Bullshot, Crummond is called to rescue. Otto paralyzes Crummond with a fiendish ray. He rams a stick of dynamite in Cummond’s mouth which will explode when the next person enters the room. Rosemary enters, but the static electricity in her fur wrap averts the detonation. They pursue in a hair-raising car chase, but plunge over a cliff. They sneak into the dungeons where the professor is being tortured, but Crummond hopelessly loses the ensuring sabre duel. Unperturbed, Crummond finally triumphs by shooting the rest of the cast.