What's happening?

The Twilight Zone: 1x20

Elegy

Three astronauts land on what looks like Earth 200 years before they left–only all of the people seem frozen in time.

The Twilight Zone: Season 1 Episode 20
The Twilight Zone: Season 1 Episode 20
The Twilight Zone: Season 1 Episode 20
Feb. 19, 1960