Lottie and Lisa have a ride on a roller coaster and tell Ella and Henry what brilliant fun it is! They both get very excited and want to have a go. The rule is that you must be at least one meter tall to be able to ride, but, whatever they do to try to grow taller, it just doesn't work, - fast enough. Dad says that they'll have to wait until next year. Ella decides that if they can't go to the roller coaster, it will Just have to come to them.