Once again, Michael Rennie dons a tin-foil suit to come and warn mankind to amend it's ways. This time, though, he is a cyborg called "Garth 7" sent back from the year 2087 to try and stop an evolutionary process that will rob us all of our ability to think for ourselves. He manages to ally with "Dr. Mason" (Karen Steele) but pretty soon they are aware that the government they wish to thwart has also sent agents back and so not just time, but other folks from the future are against them too. This is cheap and cheerful, pedestrianly written, afternoon fodder that is very light on science or…