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.

Four years after Jurassic Park's genetically bred dinosaurs ran amok, multimillionaire John Hammond shocks chaos theorist Ian Malcolm by revealing that he has been breeding more beasties at a secret location. Malcolm, his paleontologist ladylove and a wildlife videographer join an expedition to document the lethal lizards' natural behavior in this action-packed thriller.