Mary attempts to turn around the fortunes of a menswear store called The 157 Store near Portsmouth. Here the manager's laddish style and out-of-date style is turning away customers and he's refusing to change, even with Mary's guidance.

Mary is in a London hardware store, which doesn't seem to have left the 1960's. She hopes that changing the male dominated world of hardware service will help the store embrace the 21st century.

This week Mary takes on a hair salon in Kent. Here staff swearing on the shop floor are driving customers away, Mary thinks she has a plan but it involves uniting the team to save the business.

Mary heads to a struggling bridal boutique in Surrey to find out what's causing the business problems.