Neil and Arlene Glynn (Dennis Weaver and Estelle Parsons) and the kids, Deedee and Steve (Susan Dey and Kristoffer Tabori) are en route to the beach for a camping weekend.
Oh no!
A group of hellish hippies runs them off the road! It doesn't end there, as these hairy hellions are persistent. Neil is a bit of a milquetoast, wanting to just let it go, while his son seems to see trouble brewing. We also learn that the Glynn family is under some strain of their own. They're busy trying to come to grips with growing up / older.
Once at the beach, all seems well, but the hipsters are nearby! Soon, the true mayhem begins. How will the Glynns cope with this danger?
TERROR ON THE BEACH is a made-for-TV movie that plays on the fear of young, crazed, cult-types, in the wake of such things as the Manson Family murders. It tackles the generation gap as well, with the discourse between the parents and offspring representing what was happening then (1973).
As for the ne'er do wells, they're fairly intimidating, though their eeevil hijinks seem mostly sophomoric and absurd. Still, they have their moments. It's almost like watching a strange hybrid of THE HILLS HAVE EYES and any juvenile delinquent film from the 1950's-early 60's, with the addition of dune buggies!
A fun, silly romp through the sand...