A magical meteor falls in Adventure City and gives the PAW Patrol superpowers, transforming them into the Mighty Pups. But they face their most powerful challenge when Humdinger teams up with a mad scientist to steal their powers.
When a magical meteor crash lands in Adventure City, it gives the PAW Patrol pups superpowers, transforming them into The MIGHTY PUPS. For Skye, the smallest member of the team, her new powers are a dream come true. But things take a turn for the worse when the pups' arch rival Humdinger breaks out of jail and teams up with a mad scientist to steal the superpowers for the two villains. With the fate of Adventure City hanging in the balance, the Mighty Pups have to stop the super-villains before it's too late,and Skye will need to learn that even the smallest pup can make the biggest difference.—Raz
Two years after the destruction of the Cloud Catcher, metricized Victoria Vance steals a giant electromagnet from Hank and Janet's scrapyard, inadvertently setting a fire that traps the owners. Janet summons Ryder and the Paw Patrol pups to extinguish the fire.
At Adventure City, the citizens gather for a meteor shower, while Ryder introduces the Paw Patrol to Nano, Mini, and Tot, three Pomeranians who wish to be part of the team as Junior Patrollers. Meanwhile, Vance travels to an abandoned observatory and creates a Meteor Magnet from what she stole, hoping to attract an incoming magical meteor. The machine malfunctions, causing the meteor to head for Paw Tower. Ryder and the pups evacuate the tower, and help the civilians escape before the meteor collides with the tower and the street below it; the Paw Patrol take the rock to their Aircraft Carrier headquarters for analysis.
That night, Skye awakens as the meteor rock begins to glow. It splits to reveal seven crystals, one of which grants her the powers of flight and super strength. The other pups each take a crystal to gain powers themselves, but as Liberty seems to have no abilities, Ryder assigns her to train the Junior Patrollers.
Vance, having been arrested for public endangerment, escapes prison with Mayor Humdinger and the Kitten Catastrophe Crew. Inside Humdinger's private airplane, the group formulates a plan to trap the Paw Patrol, who have now re-branded as "the Mighty Pups". As Skye investigates, Vance steals her crystal and parachutes out of the plane with Humdinger and the kittens, leaving Skye behind. Ryder and the other pups clear Main Street so Skye can land the damaged plane.
Back at the Aircraft Carrier, Skye tells Chase that having superpowers was the first time in her life she did not feel like the smallest and weakest; having been born a runt, she was often overlooked, leading her to run off in a blizzard to join the Paw Patrol. Taking the other pups' crystals, Skye attempts to retrieve hers from the villains, but Vance, having acquired superpowers of her own, captures Skye and steals the rest of the crystals. After learning of what has happened, the Paw Patrol and Junior Patrollers fight and subdue Humdinger, who has used one of the crystals to grow into a giant. Marshall retrieves the crystal, and Humdinger is rearrested.
The Paw Patrol follow the crystal's signature to the observatory, where the Junior Patrollers distract Vance so Zuma can rescue Skye. The pups each take turns using Humdinger's crystal as they fight Vance. During the battle, Chase falls off a cliff, but Liberty rescues him, discovering her superpower is elasticity in the process. The pups retrieve the other crystals, subdue and rearrest Vance, and destroy the meteor Magnet; however, Vance has already attracted more meteors, which are now heading for Adventure City. The pups give their crystals to Skye, who flies into the air and destroys each meteor individually. A giant meteor enters the Earth's atmosphere, and Skye destroys it as well; she is subsequently rendered unconscious, but the crystals resuscitate her. She and the Paw Patrol celebrate together, and resume protecting the city.
