First in a two-part documentary in which the dirty secrets about the way modern Brits live are revealed by the filthy work of the men and women who clean up after us. A pair of Manchester sewermen share their first-hand knowledge of the nation's poor diet, an event cleaner offers insight into how Brits behave in a crowd at Cheltenham Racecourse and two window cleaners face the terrifying task of keeping a huge national icon absolutely spotless. Meanwhile, a team of extreme cleaners in Berkshire faces one of the most extraordinary house clearances of their careers, pest controller Jim goes into battle with an infestation of bedbugs and, on one of the largest landfills in Europe, the workers do their best to hide the gigantic quantities of junk the nation produces