Anita Rani turns the attentions of the residents of the Bristol street to the bathroom products and takes them to the local sewage works, where they get a very graphic introduction to the problem of wet wipes. Hugh Fearnley-Whittingstall examines why so much British plastic waste is ending up rotting on illegal dump sites in Malaysia, presenting his findings to Environment minister Michael Gove, and travels to Plymouth University to learn about the prevalence of microplastics in nature.