Granville has a new idea for growing the business - he's offering fitness classes. But can he really turn Gastric into a greyhound, and is that the right way to Madge's flinty heart? At the other end of the scale, Mr Newbold believes he has hit on the perfect way to repel the attentions Mrs Featherstone - all he needs is a completely new image. But do even worse perils than the black widow lie in wait for the new look Newbold? Meanwhile, Leroy is keen to take out a librarian, but she's refusing to give him a date, and Granville has a range of experimental Wi-Fi underpants to shift, but are his customers really ready for that level of digital connectivity?