Young Mr Grace warns Mr Rumbold that there will be a fire drill but refuses to tell him at what time. Meanwhile, an Arab Emir arrives in the department wishing to buy a pair of trousers for one of his wives, but no one is allowed to touch her, so measuring her proves difficult. While they are completing the sale, the fire alarm goes off and the staff response means they all have to stay behind that evening and practise what to do if there is a fire.