They're all dead-everyone over 25, after experimental nerve gas is accidentally leaked! So begins Gas-s-s-s, one of the most vaporizing send-ups of the psychedelic sixties. The film's (blurry-eyed) focus is two hippie faithfuls who flee Dallas after reactionary forces have turned the city into a juvenile police state. On the road to paradise, they quickly discover that their own generation is just reinventing the same mess as their elders. What follows is a string of weirded-out encounters, first with a fascistic football team intent on pillaging El Paso, then with an ultraconservative biker club that has taken over a golf course. As the two head West, pursued by Marshall McLuhan, Texas deRanger, their incoherent companions include Bud Cort, Talia Coppola (Shire), Ben Vereen, and Cindy Williams, each a spaced case. Gas-s-s-s comes complete with a rock-ous soundtrack by Country Joe and the Fish, Edgar Allan Poe on a Harley, and enough freaky riffs to put a headstone (or is that a stoned head) on the sixties. Now breathe in. Gas-s-s-s. Light show designed by Dale MacDonald.-Steve Seid