Whilst Nana and Harry are dog sitting for an afternoon, Harry decides to take the puppy for a walk in Dino World. However, in Dino World the puppy is dino sized and Harry and the gang have a challenge trying to discipline and train their fury friend in some tug of war styled capers. They attempt to teach the puppy tricks, and even give him a bath. They all have fun, but realise what a responsibility a puppy can be.