Inside the restaurant chain Subway, revealing how the American sandwich shop became the most ubiquitous fast food brand - with more outlets across the UK than McDonalds.

A look into the hidden secrets of Primark, Britain's biggest clothing retailer. With access into the inner workings of the high street behemoth, including tips, tricks and secrets.

Going behind the scenes at Toby Carvery, one of Britain's largest restaurant chains, which serves millions of roast dinners across the country every Sunday.

Revealing the secrets of the iconic fast-food chain, Burger King. Discovering where the meat and chips are really made and how their business model functions.