Wildlife rules on Isla Nublar, where a dinosaur theme park used to be located not so long ago, but a suddenly awakened volcano threatens to wipe the dinosaurs off the face of the earth. Former park manager Claire Dearing has been reclassified as an endangered species advocate and is trying to do everything she can to save the prehistoric animals. She is approached by Eli Mills, a confidant of billionaire Benjamin Lockwood, who years ago was an associate of Professor Hammond. Mills suggests that Claire, who is familiar with the park's security system, go to the island and help him capture some individuals to take them to another safe island. Claire even manages to get her ex-boyfriend, trainer Owain, to take part in the rescue mission, but upon arriving at the park, it turns out that Mills has very different goals.