Third Tremors movie takes us back to the small Nevada town of Perfection where local resident and adventurer Burt Grummer returns after traveling abroad and killing carnivorous worms called "Graboids" (introduced in the first movie) and their offspring "Shriekers" (introduced in the second movie) to life in his home town and must deal with some crooked land developers, a thrill-seeking guy named Jack Sawyer looking for wealth in this potential tourist town, and eventually dealing with a new...

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.

Is it a nightmare or an actual view of a post-apocalyptic world? Set in an industrial town in which giant machines are constantly working, spewing smoke, and making noise that is inescapable, Henry Spencer lives in a building that, like all the others, appears to be abandoned. The lights flicker on and off, he has bowls of water in his dresser drawers, and for his only diversion he watches and listens to the Lady in the Radiator sing about finding happiness in heaven. Henry has a girlfriend,...