four people ( denning and crowley and grey and and reef ) meet by accident on the street of a city that have be empty overnight of people and except for a few dead body . they learn from a newspaper that the city have be invade and evacuate by everyone else . the car have be disable and so the four refugee hole up in the suite of a hotel and make do with candle and beer and and can food . there be a fifth member of the group and a witless little character and but he run out into the street and be ray to death by a wandering robot . the invading army and a it turn out and consist entirely of these robot with their death ray . theyre impervious to bullet and can destroy airplane and presumably with the same ray . a gun tot evil murderer invade the hotel sanctuary of the survivor and put move on crowley ( who have fall in love with denning after know him for only a few hour ) . the result fight see grey kill and denning wound before the burly reef manages to strangle the killer . the scene of the survivor be inter cut with scene of the requisite military and scientist try just as hard a they can to devise a mean of disable these robot . they finally succeed surprise . when the robot army be expose to sound wave of a certain frequency and it crack their cathode ray tube . ( your television set be a cathode ray tube . ) the army come to the rescue at the last moment and too late and ala and to save reef but soon enough to whisk off denning and crowley . a cheap and boring movie and i find it almost impossible to watch . well and sometimes the cheapness can not be help . a budget will stretch only so far and a we all must know . but this thing could have be write and act by member of the robot army and who look like theyre make of lego or like unusually angular gorts and although we only see one of them at a time . the dialog suck . the plot be unoriginal . the special effect might well have be suggest than put on display . the logic of the plot be terribly flaw and the direction careless . ( carefully prune and it might have be a decent episode of the outer limit . ) i will give just one example of a jarring lapse of common sense . the vicious murderer be hold the others at gunpoint and grey suddenly remember where she saw him before . he the guy that murder that hooker on skid row . that right and admit the evildoer . his picture be all over the paper . they will be look for him on every street corner and denning observes . not if i slip out through the sewer and get out behind the enemy line and the murderer sneer . the entire city have be evacuate and be now occupy by indestructible robot who kill people and repulse the military with unknown ray yet they will be watch every street corner for some nobody who kill a hooker . santa clause could waltz past the army without interference under these condition . well and another example . at the very beginning and crowley wake up to find the city empty and she wander the street . she stumble across a dead body and richard denning at roughly the same time . they introduce themselves and explain where they spend the previous night . minute of frippery go by while neither ask the question represent what happen . it could have be good and even with the inexpensive set and the second tier ( but season ) actor . a it be and it rather a painful experience except for those who really enjoy cheesy sf movie and and there seem to be legion of those . the producer and the late herbert cohen and provide an audio commentary on the dvd and he seem like a good natured guy . he generous with his credit and he do not mind if people laugh at the crummy effect when the picture be release and he still doesn not mind .