Doggo, an older dog, is used to things a certain way. When Pupper shows up, Doggo's routine changes. Pupper is very playful and soon the humans realize Pupper needs some training. But when Pupper comes back from puppy school, Doggo senses that, although Pupper is well-behaved, he isn't happy. So Doggo shows Pupper how to rediscover his fun side.