A turn of the century wild west show struggling to make a living in Mexico comes into the possession of a tiny prehistoric horse. This leads to an expedition to the Forbidden Valley where they discover living dinosaurs. They capture one and take it back to be put on display, leading to inevitable mayhem.

Genres

Cast

James Franciscus

Tuck Kirby

Gila Golan

T.J. Breckenridge

Richard Carlson

Champ

Laurence Naismith

Professor Bromley

Freda Jackson

Tia Zorina

Gustavo Rojo

Carlos

Curtis Arden

Lope