The discovery of a midget horse, thought to be of a species fiftymillion years old, prompts members of a Wild West show to venture intoMexico's Forbidden Valley in search of world-wide fame and untoldwealth. But they are met by prehistoric monsters, including "Gwangi," agiant dinosaur that decimates their ranks. Spectacular special effectsfrom Academy Award-winner Ray Harryhausen ("Clash of the Titans," "TheBeast from 20 ,000 Fathoms").
