After their boat is caught in a mysterious storm, the pups from PAW Patrol are forced to land on an unexplored tropical island teeming with dinosaurs. There, they meet Rex, a pup who has been stranded on the island for years and has become a true expert on everything related to dinosaurs. However, their main rival, Mayor Humdinger, begins reckless drilling in an attempt to exploit the island’s natural resources, accidentally triggering an eruption from a massive dormant volcano.

The PAW Patrol pups face a series of dangerous, dinosaur-sized rescue missions unlike anything they have encountered before, as they must stop Humdinger before everything on the island disappears forever.