Dodge spots a mysterious door in the school hallway, but where could it lead? The pups can hear all kinds of exciting and curious noises coming from behind it, and their imaginations run wild. They have to find out what's inside, so they come up with a hilarious plan... it's time to pretend to be grown-up!

It's International Squeaky Toy Day at Pup School - an annual event dedicated to sports and games that feature squeaky toys. The pups expect a day packed with fun, games and endless squeaks! But just as the excitement is about to begin, Dodge makes a shocking discovery... All the squeaky toys have mysteriously vanished!

Where could they possibly have gone? The pups are on the case to rescue Squeaky Toy Day.