"The Invaders" is episode 15 of season 2 (and episode 51 overall) of the American television anthology series The Twilight Zone. The episode, which originally aired January 27, 1961,^[1] starred Agnes Moorehead. It was written by Richard Matheson, directed by Douglas Heyes,^[2] and scored by Jerry Goldsmith. Distinctive features of this episode include a near-solo performance by one character (interacting with miniature puppet "characters"), and an almost complete lack of dialogue. The only dialogue in the entire episode aside from Rod Serling's usual narration came from Douglas Hayes, the episode's director. In addition, this is the only episode in which Rod Serling gives his opening monologue at the start of the prologue, rather than the end. The protagonist portrayed by Agnes Moorehead often cries out in pain and terror, but never speaks.

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.

An old woman lives alone in a remote cabin. She is dressed shabbily, and there are no modern conveniences in her abode. After hearing a strange deafening 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, which appear to 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. She eventually kills 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.

A voice speaking in English emanates from within the craft. The intruder frantically warns that his partner, Gresham, is dead; and that the planet is inhabited by a race of giants and impossible to defeat. The side of the ship reads U.S. Air Force Space Probe No. 1. The "tiny" invaders were human or humanoid 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.

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 unfiled in the Twilight Zone.

When the episode was adapted for the Twilight Zone radio dramas, starring Kathy Garver,^[3] the story was changed from an old non-speaking woman to an elderly couple.