When a vacationing family stumbles upon the dinosaurs of Isla Sorna, a secondary island where the animals were bred en masse and allowed to grow before being transported to the park, Ian Malcolm (Jeff Goldblum) is called in by John Hammond (Richard Attenborough) to lead a team to document the island to turn it into a preserve, where the animals can roam free without interference from the outside world. Malcolm agrees to go when he discovers his girlfriend, paleontologist Sarah Harding (Julianne Moore) is already on the island, while at the same time Hammond's nephew Peter Ludlow (Arliss Howard) has taken over his uncle's company and leads a team of hunters to capture the creatures and bring them back to a theme park in San Diego. The two groups clash and are ultimately forced to work together to evade the predatory creatures and survive the second island. The film also stars Pete Postlethwaite, Richard Schiff, Vince Vaughn, Vanessa Lee Chester, Peter Stormare, and a young Camilla Belle.