After their ship gets caught in a mysterious storm, the PAW Patrol pups 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 archrival, Mayor Humdinger, begins recklessly mining in hopes of exploiting the island for its natural resources, he inadvertently causes a huge, dormant volcano to erupt. The PAW Patrol pups are thrown into a series of high-stakes, dino sized rescues bigger than anything they've done before, as they must stop Humdinger before everything on the island goes extinct.