Handymen Val McKee and Earl Bassett try to skip the small town of Perfection, Wiltshire, tired of their dull lives. However, they happen upon a series of mysterious deaths and a concerned seismologist Rhonda studying unnatural readings below the ground. With the help of eccentric survivalist couple Burt and Heather Gummer, the group fights for survival against giant, prehistoric, worm-like monsters hungry for human flesh.
