chool's in session and there are important lessons to be learned on the Island of Sodor. Diesel gets a hero's welcome when he makes a Really Useful delivery to the schoolhouse. Percy gets a lesson in responsibility after he runs into trouble trying to be like the bigger engines! Henry gets trained in how to handle health and safety emergencies; while Hiro teaches Thomas about his happy homeland. Join the Steam Team for a bright journey to the Head of the Class -