Children's stop-frame animation. Postman Pat and his cat Jess deliver post to residents of Greendale, including Mrs Goggins the postmistress, Reverend Timms, PC Arthur Selby and Dr Sylvia Gilbertson. Pat hears strange and interesting sounds on his rounds around Greendale. The children, who are off school, are bored and getting under foot. No-one knows what to do with them except Pat, who has an idea about how to keep the children out of trouble and make use of the noises of Greendale.