When Harry comes home with exciting tales from his day at school, the Dinos wish that they could go to school too. Harry thinks that Dino World may be the place to look for a Dino school - and lo and behold, when they arrive they find a school ready-and-waiting for them. With Harry as their teacher, the Dinos have a great time learning how to be at school: Trike is appointed board monitor; Patsy demonstrates playing the ukulele for ‘Show and Tell’ and they all discover that recess is the best part of the day! For their last lesson, Harry decides to teach the Dinos how volcanoes work, but he gets a little over-generous with the baking soda as part of his demonstration ensuring that Dino school ends with a bang!