This spin-off of the Tremor movies chronicles the town of Perfection, Nevada, which has a little problem with great big worms. The Graboids, and their offspring the Shriekers and Ass-Blasters, have overrun the valley but are on the government's protected species list...
- The abandoned mine is the same mine that appears in the prequel Tremors 4: The Legend Begins, where it is still in use.
- Most of the sounds produced by 4-12 are taken from the Velociraptors from Jurassic Park.
- Tinsley Grimes takes over the role of Mindy Sterngood, played by Ariana Richards in Tremors and Tremors 3: Back to Perfection (2001) (V).