There's a mystery at Jake's mountain, and it's scaring away all the people who came to ski. The PAW Patrol must find out who or what left strange snow tracks. Could it be a Snow Monster? If they don't find what it is, they might have to close the slopes forever!

Rubble pretends to be "Apollo the Super-Pup", a superhero pup on TV who saves the day by himself. But his superhero phase gets him and the train engineer trapped in a tunnel behind a rock slide. Can the PAW Patrol save the train, the conductor, and Rubble?