On Maple Street somewhere in America, we are introduced to the residents who are talking with each other, riding bikes, playing outside (typical neighborhood) when suddenly a meteor-like light streaks across the sky and all the power goes out.
A boy named Tommy tells them what he read in a comic book. Every time something like this happens, the aliens send a family that looks just like them to earth to prepare for them to land. The people on Maple Street are all turning on each other because of fear, prejudices, and unknowing and are letting fear drive them into rediculous conclusions.
I-i-it w-was Tommy!!
Everyone starts blaming each other and tryng to find ny evidence that one of them is an alien. The streak is gone, the power line and cars are not working, and the radio connection cannot be found. Les Goodman tries to start his car but it ends up starting on its own, which makes the neighbors believe he is the alien. When Steve tries to defend him, Charlie says that Steve could still be under suspicion especially because of his "suspicious" radio.
Is it always the same?
When Charlie sees a mysterious figure coming to them from the other side of the street, he shoots the figure out of fear. This figure turns out to be Pete Van Horn, which Charlie just shot to death, and who was probably coming back to give them any news or information that he had discovered.
Its the monster!!
After Charlie shot Pete Van Horn, his neighbors start to suspect he is the alien, and their suspicion only grows when the lights in his house start to go on and off. As Charlie is under the most suspicion, he accuses Tommy. As Charlie is blaming Tommy, the neighbors are blaming Steve and Don as well.
No! It's Don!
Phhtt! Your the alien
As the neighbors are going crazy trying to find a scapegoat, not far from Maple Street, there are two figures discussing how they desroyed an entire community by creating prejustices and suspicion. The narrator then goes on to say that thee things can be more detrimental than bombs or physical weapons.