This film is a cannibalisation of a series of twelve episodes cut (not particularly skilfully) into just under 80 minutes. As such, there are some glaring holes in the storyline as Bela Lugosi portrays a scientist who has discovered a new meteorite element and is determined to convert it into a whole range of useful things including explosives; a deadly Z-ray, a lethal gas; an invisibility contraption; a machine that can heal wounds and... the most astonishing and hysterical looking Inca-esque robot you've ever seen - as he strives for world domination and to stay ahead of the investigating G men. It's a hoot, and should be viewed as such - for heaven's sake don't try to make sense of it - it's just there to be enjoyed.