Documentary following the men and women who are passionate about clearing their local streets of litter and dog fouling, as they confront the litterers and roll up their sleeves to clear up other people's mess. 30 million tonnes of litter are dumped on British streets every year. It costs a billion pounds a year to clear up, and hard-pressed councils cannot always cope with the daily tide of dog mess, drinks cans, sweet wrappers and cigarette ends. Some vigilantes, like retired teacher and soldier John, prefer to confront litterers head-on; others, like Adrian in Leicester, deal with the problem by picking up the rubbish themselves - Adrian has harvested more than 50,000 drinks tins from his local streets. And Jill, in North Yorkshire, mounts one of Britain's most unusual dog fouling campaigns - highlighting every dog mess on a popular footpath with a pink flag. After marking 72 of them, she runs out of flags.