Combined Miniature Deterrent Forces A medical and science crew board a submarine and are miniaturised and injected into an important foreign scientist's body. The mission is to remove a blood clot on his brain that was suffered during an assassination attempt. Once shrunk and in their new bodily world, the team must battle the body's defence...

I remember I really liked this movie when I was a teenager, along with the novel by Isaac Asimov that was based on the screenplay. (I never read the original story they based the screenplay on.) It was adventurous fun. I don’t recall if I was titillated by the presence on the cast of Raquel Welch, though they showed great restraint in having her...