When a traveling Wild West show comes to town, the natives are frightened by a one-foot-tall horse that is believed to be a bad omen. The superstitious natives try to return the horse to The Valley of Gwangi to avert disaster. Tuck (
James Franciscus) and T.J. (
Gila Golan) try to help archaeologist Bromley (James Naismith) find the tiny equine in the valley, but they unleash a prehistoric giant monster in the process in this implausible adventure feature. ~ Dan Pavlides, All Movie Guide