Ernest Albright opens his eyeglass store in what he thinks is a thriving community, but soon discovers that his store is just a shabby shack in Tombstone, Arizona. The town's Doom Brothers are trouble for everybody including Wyatt Earp, the sheriff. Ernest uses his own special brand of short-sighted shooting to help Wyatt rid the town of its worst citizens and live in peace.

Influenced by the social and geopolitical situation of the early nineteen-seventies and the hippie youth movement of the late nineteen-sixties, Quatermass is set in a near future in which large numbers of young people are joining a cult, the “Planet People”, and gathering at ancient sites, believing they will be transported to a better life on another planet.