Dirty Britain

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.

In London, a team of domestic maids discover how fussy some homeowners can be about dirt and grime, while pest controller Jim deals with a house that has been overrun by pigeons. The Manchester sewers are clogged up with things that people shouldn't put in them, and Mick and Shaun have to clean up the mess.