Openning Narration
This is one of the out-of-the-way places, the unvisited places, bleak, wasted, dying. This is a farmhouse, handmade, crude, a house without electricity or gas, a house untouched by progress. This is the woman who lives in the house, a woman who's been alone for many years, a strong, simple woman whose only problem up until this moment has been that of acquiring enough food to eat, a woman about to face terror, which is even now coming at her from - The Twilight Zone.
Plot
An impoverished, aging woman (Agnes Moorehead) lives alone in a rustic cabin. She is dressed shabbily, and there are no modern conveniences in evidence. After hearing a strange noise above her kitchen roof, she is accosted by small intruders that come from a miniature flying saucer that has landed on her rooftop. Two tiny figures, apparently about six inches high, which may be robots or beings wearing pressure suits, emerge from the craft.
The small figures attack the woman, using small, pistol-like weapons that leave radiation burns on her skin, and, after following her into her cabin, slashing her ankle and hand with her own kitchen knife. The suspense builds as the woman searches for the invaders. She eventually destroys one, wrapping it in a blanket and beating it until it is still, then throwing it into the burning fireplace. She follows the other to the saucer-ship on her roof, which she proceeds to attack with a hatchet.
All this has taken place with no words being spoken, but now a voice (director Douglas Heyes) is heard speaking in English from within the craft. The intruder frantically warns other potential visitors that the planet is inhabited by giants and impossible to defeat. The camera pans to the markings on the side of the ship, which read U.S. Air Force Space Probe No. 1. The invaders were not tiny, but were human astronauts from Earth; the woman in the small farmhouse belongs to a race of giant humanoids native to another planet. She finishes destroying the ship and then climbs back down from the roof into the house, exhausted.
Closing Narration
These are the invaders, the tiny beings from the tiny place called Earth, who would take the giant step across the sky to the question marks that sparkle and beckon from the vastness of the universe only to be imagined. The invaders...who found out that a one-way ticket to the stars beyond has the ultimate price tag...and we have just seen it entered in a ledger that covers all the transactions in the universe...a bill stamped "Paid in Full" and to be found on file in the Twilight Zone.