A wealthy entrepreneur secretly creates a theme park featuring living dinosaurs drawn from prehistoric DNA. Before opening day, he invites a team of experts and his two eager grandchildren to experience the park and help calm anxious investors. However, the park is anything but amusing as the security systems go off-line and the dinosaurs escape. A pragmatic paleontologist touring an almost complete theme park on an island in Central America is tasked with protecting a couple of kids after a power failure causes the park's cloned dinosaurs to run loose.