A small town gradually becomes aware of a strange creature which picks off people one by one. But what is this creature, and where is it? At the same time, a seismologist is working in the area, she detects _tremors_. The creature lives underground, and can 'pop up' without warning. Trapped in their town, the town-folk have no escape.
S.S. Wilson (story), Brent Maddock (story), Ron Underwood (story), S.S. Wilson (screenplay), Brent Maddock (screenplay)