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The Twilight Zone: 1x39

The Elevator

Two twenty-something brothers go to their father’s laboratory to steal his fathers’ growth serum research and sell for their own profit. They find a web-like material, which tastes great. They find large plants. Some plants have increased in size more than others. Then they find animals that have also grown in different degrees of magnitude, but they are all dead.

The Twilight Zone: Season 1 Episode 39
Jan. 31, 1986