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.
All this has taken place in silence, but a voice (director Douglas Heyes) is heard speaking in English 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 impossible to defeat.
The invaders were astronauts from Earth; the woman in the small farmhouse belongs to a race of humanoids native to another planet.
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.