Having been 'promoted' to office duties to keep him out of trouble, Harry finds that his genius is not being fully exploited and his only real challenge is facing the endless tedium. Until, that is, he mistakes the company chairman for a cleaner and joins him in a rather over-large brandy.

Harry is introduced to the tough world of salesmanship by pill-taking Mr Johnson. Will he now, at last, be able to put his genius to good use? What will he do for the bakery's sales? What will he do for Mr. Johnson's ulcer?

All that stands between Harry and a holiday for two in Barbados as Salesman of the Year is just one order from McTaggart Supermarkets, but his sales techniques are no match for Charles McTaggart's sales resistance. All seems lost until a young Scots mother (with a striking resemblance to McTaggart) calls upon Harry's superior intelligence in a rather unexpected delivery.