After their ship gets caught in a mysterious storm, the Paw Patrol crash-land on an uncharted tropical island filled with dinosaurs. They meet Rex, a pup who has been stranded on the island for years and has become an expert in all things dino-related. When the Paw Patrol’s arch-rival, Humdinger, begins recklessly mining in hopes of exploiting the island for its natural resources, he inadvertently causes a dormant volcano to erupt. As they are thrown into a series of high-stakes, dino-sized rescues, the Paw Patrol must stop Humdinger before everything on the island goes extinct.