Astronaut Colonel Adam Cook crash lands on a strange planet 4.3 light years away from his sun, with gravity and atmospheric conditions similar to those of his home world. Most of his equipment is destroyed in the crash and cannot be repaired due to a lack of resources and his having broken some ribs. He contacts his home base and speaks with a subordinate officer and then with General Larrabee, but they have little encouragement for him — there is no replacement spacecraft to rescue him, and his home planet may be at war in a matter of hours. However, Larrabee does add that it may be possible to transmit instructions on how to repair the ship.




In a subsequent communication, Larrabee reports that the enemy attacked and "our entire seacoast went" in 12 minutes after which there was retaliation "with alacrity and great effectiveness." Those at base will have to move soon, meaning Cook will have no one to contact.




Cook leaves his ship at night and finds drawn patterns in the dirt. While looking for the source, he is hit by a rock from an unseen source, and knocked unconscious, causing him to not hear Larrabee's last transmission that radiation from the attacks will kill any remaining survivors and ends with the words, "Whoever you meet there, however you meet them, I hope it can come without fear. I hope it can come without anger. I hope your new world will be different. I hope you'll find no word such as hate. I hope there'll be...".




Upon regaining consciousness, Cook returns to his ship and is startled by a noise coming from a closet. Cook leaves the ship as a gesture showing that he means the alien no harm. A human-like female emerges from his ship. Not knowing each other's languages, they communicate through sketches in the sand and pantomime. Adam learns that the alien, whose name is Norda, is also stranded; her planet left its orbit and she is its sole survivor. As they prepare to look for food, Cook picks up a stick, which Norda interprets as a threat. She scratches his face and runs away.




Soon after, Norda returns and expresses remorse for her actions, which Cook happily forgives. They find a more fertile area, which Cook likens to a "garden." He fully introduces himself as "Adam Cook," a man with a broken arm and a broken rib. Norda gives her full name as "Eve Norda". Adam and Eve begin a new life on this planet she calls "Earth". At this point she offers him a "seppla" (an anagram of the word "apples", which are artistically depicted as the biblical forbidden fruit). As they venture further, Rod Serling narrates that he presumes the place they are heading to is Eden.