"Maple Street, U.S.A. Late summer. A tree-lined little world of front porch gliders, barbecues, the laughter of children, and the bell of an ice-cream vendor. At the sound of the roar and the flash of light, it will be precisely 6:43pm on Maple Street. [Narration interrupted by the effects described above, as well as character action and dialogue.] This is Maple Street on a late Saturday afternoon. Maple Street, in the last calm and reflective moment before the monsters came."
After what is believed to be a meteor flies overhead, Maple Street experiences a total power failure. Pete Van Horn leaves to find what is going on. Tommy, a reader of sci-fi, says human- looking aliens have infiltrated Maple Street. No one takes this seriously until Mr. Goodman's car cranks for a few seconds. Suspicion falls on him, made stronger by a neighbor's memory of seeing him looking up at the stars at night. Everyone begins to panic as the evening approaches. When a mysterious figure walks towards them in the dark, Charlie Farnsworth takes a neighbor's rifle and fires. The mysterious figure turns out to be the returning Pete Van Horn. Charlie is then accused of being the alien, then Tommy, then total madness breaks out. As various house lights flash on and off, rioting breaks out. Two nearby aliens watch these events. One tells the other that by manipulating electricity, it is easy to turn neighbor against neighbor. Maple Street is only the beginning."The tools of conquest do not necessarily come with bombs and explosions and fallout. There are weapons that are simply thoughts, attitudes, prejudices - to be found only in the minds of men. For the record, prejudices can kill and suspicion can destroy, and a thoughtless, frightened search for a scapegoat has a fallout all its own - for the children, and the children yet unborn. And the pity of it is that these things cannot be confined to the Twilight Zone."