After a mysterious cosmic event rips Oak Street from suburbia and transports their neighborhood to someplace unknown, the Platt family soon discovers that their very survival depends on them sticking together as they navigate their now unrecognizable surroundings.

The PAW Patrol crash land on an uncharted tropical island filled with dinosaurs after their ship gets caught in a mysterious storm. They meet Rex, a pup who has been stranded for years and has become an expert in all things dino-related. When the Patrol’s archrival, Mayor Humdinger, begins recklessly mining to exploit the island's natural resources, he inadvertently causes a huge, dormant volcano to erupt. The 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.