Dinosaurus!

On a small tropical island, Bart Thompson and his crew are blasting the sea bed to deepen the harbor. In doing so, they seem to have dug into an ice cold under water pocket where they find two perfectly preserved dinosaurs. They remove the beasts to the shore where during a nighttime thunderstorm they are struck by lightning and reanimated. The unscrupulous island manager, Mike Hacker, also made a find: a Neanderthal man, who is also reanimated. While the Neanderthal and his new friend, a young boy named Julio, get into mischief Bart and the others must find a way to protect themselves from the rampaging beasts.