Deep underneath the New Mexico desert lies a laboratory working on robots and building a space station, several scientists and their assistants suffer unexplained deaths. Richard Egan is sent to investigate, (I thought he looked very much like a taller Frank Sinatra!). Filmed in colour and 3-D the colour prints were once thought lost but thankfully they weren't, the colour looks very nice though the very basic looking scientific equipment, with its large buttons and dials, is quite amusing. As are two robots, Gog and Magog, plus a scene involving US military aircraft, the stock footage used is of different 'planes, what lands aren't the ones that took off! The deaths are quite inventive and unpleasant, one man freezes to death, another dies as a result of exposure to high frequency, two die on an out of control centrifuge, etc. As others have mentioned the film is rather slow for the first hour, there is a lot of scientific talk, but the last part does make up for it.