Educational series for four- to seven-year-old children with learning difficulties, offering teachers, parents and carers a range of approaches to develop language and communication skills. Justin visits stables in Northern Ireland and meets his friends Michael and Natasha. Before they go riding, they need to find three things: a white pony, a saddle and a riding hat. Mr Tumble wants to go horse riding as well. It is not long before he is allowed to try, and goes galloping off in a field.