Because you don't understand it, you want to kill it. An alien ship crashes into the desert, at first it's thought to only be a meteorite, but small time scientist Richard Carlson gets to view the stricken ship before it is totally buried beneath the collapsing crater it created upon its crash landing. Nobody believes Carlson, but soon the aliens start taking on human form and it's then that everyone else must…

When a fireball blazes through the sky then leaves a smouldering crater in the desert, local writer “Putnam” (Richard Carlson) decides that he and girlfriend “Ellen” (Barbara Rush) have to hop on their friend’s helicopter and explore the scene. Thing is, when he gets to the bottom of the rubble he could swear he saw something. Before he can get any corroboration, a rockfall buries the site and with the army as…