When an underwater volcanic eruption tears up the sea bed off the coast of Ireland, two treasure hunters make the discovery of a lifetime when they encounter a gigantic prehistoric monster that’s been unleashed from the earth’s crust. After capturing the beast, the pair transport the creature down to London where it’s given the name of “Gorgo” and put on display to an avid public. Little do they realize that Gorgo is just an infant, and that his exponentially larger mother is about to emerge from the depths to avenge the capture of her offspring.

The impressive title work is the viewer's first clue that producer William Alland and director Eugene Lourie squeezed considerable artistry and style from a shoestring budget. Look past the economic limitations; the suspenseful and imaginative story involves the death of a humanitarian genius whose father (a famous surgeon) and brother (a robotics expert) team up to keep the genius' brain alive in a robot body (well designed by ace effects artist John P. Fulton). The film's message concerns the nature of the soul and the role which physical sensations play in making humans act humane. Other affects by Fulton include one of sci-fi cinema's best death rays. All in all, a moving and intelligent movie

The controlled explosion of an atomic bomb in the Arctic Circle awakens a frozen dinosaur that will wreak havoc in New York City.