Mr. Grace wants to try a new idea for boosting sales. Some of the staff are to pretend they are customers and when a real customer shows interest in any goods, they are to praise it, in order for the real customer to buy it. However, due to the staff's inexperience as “customers“ in their own working place, things do not go exactly as planned. Secondly, Mrs. Slocombe is rather worried about her pussy, which is about to have kittens any day now. After a slight misunderstanding, where the gentlemen believe it is Mrs. Slocombe herself who is “expecting“, Captain Peacock forbids her to bring her cat into the store. However, she decides to smuggle her in.