It’s like watching a whole bunch of Monica Gellars in action. The reality TV series sees obsessive cleaners from the UK team up and head over stateside to take on the feat of cleaning the dirtiest homes in the USA. In this last episode of the season, obsessive cleaners Caren and Dave visit single mum Britta's three-bedroom bungalow home in the north west of America - which is filled with clutter, leftover food scraps and dog poo stains. Things will probably get quite gross but the ending is likely to bring a very satisfying conclusion that tidy people will particularly love. John Thomson narrates.