Documentary going behind the scenes of high-street bakery chain Greggs, founded in the 1930s and now trading from more than 1,670 retail outlets across the UK. Filmed over a year, the programme follows key staff members from store front to boardroom and secret tasting labs, as they prepare for big changes on the horizon. Greggs' plans to go upmarket are under way, with designer Phil introducing new interiors and the master bakers whipping up new delicacies. But retail development manager Alison is feeling the pressure. She has just two months to give 10 bakeries a makeover - will it all be worth it?