Squirm is an average shock meller about some rampaging sand worms in the Georgia sticks, claimed to be derived from an actual occurrence on September 29 1975. Some genuine creepy special effects are offset by clumsy and amateurish low-budget location production, yet there is an admirable earnestness to the effort.
Story kicker is an electrical storm which downs power lines, with runaway juice charging the wet mud and driving out the 10-18-inch sand worms of the area. They are hungry and angry. They are also effective.
City slicker John Scardino visits local Patricia Pearcy, eldest daughter of widow Jean Sullivan. Sheriff Peter MacLean doesn’t believe in the worm plague, but becomes one of its victims.