Test space rockets exploding at liftoff and increased reporting of UFO sightings culminate in a direct attempt by alien survivors of a dead, extra-galactic civilization to invade Earth from impervious flying saucers, using ray-weapons of mass destruction.
If you liked this movie, you should also see: The Thing from Another World (1951)Invasion of the Body Snatchers (1956)Dr. Jekyll and Mr. Hyde (1931)The Invisible Man (1933)Quatermass 2 (1957)