Sy Jones and Ted Kramer were scientists on an expedition into the jungle to visit the mobile laboratory set up in a native village. Upon arrival, they noticed that it didn't appear that anyone could be found, not even their loyal guide Ako. Stories of superstition began to creep into the two men's psyche. Where had the villagers gone? What had happened to them? The answers they were looking for would be found...in The Twilight Zone.