John is looking at the skies with his fiancée when they see what looks like a huge meteor crash into the desert. As events unfold, various townspeople start to disappear.

Author and amateur astronomer John Putnam and schoolteacher Ellen Fields witness an enormous meteorite come down near a small town in Arizona. Putnam becomes a local object of scorn when, after examining the object up close, he announces that it is a spacecraft, and that it is inhabited...