In this adventure film, a cowboy aims to make a name for himself by capturing a prehistoric Allosaurus and showcasing it in a Mexican wild west show. However, the creature, known as the Gwangi, has a surprising aversion to being displayed in public.

The Valley of Gwangi
In the Wild West, a lone cowboy named Tuck Kirby pursues wealth and celebrity by capturing an Allosaurus in a Mexican valley and featuring it in a sensational show. However, his prized attraction, the Gwangi, surprisingly grows a strong dislike for being put on public display.