Anticlimactic Twilight Zone Episodes

The Garden

"A spaceship crash-lands on an unknown planet. The two surviving astronauts, a man and a woman, realize the spaceship is damaged beyond repair and that it will be impossible for anyone to come rescue them. They find they are able to live easily off the bountiful vegetation, which provides everything they need—indeed, the setting turns out to be idyllic. Eventually, they procreate and start a family on their new planet. This couple becomes known to later generations as ... Richard Benson and Margaret Wilson, crewmembers on NASA's lost Voyager mission, which disappeared after failing to follow proper emergency procedures."

- Adam