It's pay day at Grace Brothers and the staff realize that their money just doesn't go very far. An opportunity for a bonus arises when a customer loses a diamond and offers a £100 reward. Greed gets the better of everyone, except Mr. Grainger, and soon they're conspiring behind each others backs. Mr. Mash throws a wrench in the search after he damages a jeweled dress, causing a multitude of "diamonds" within the department.

Naughty sayings on her underwear push Mrs. Slocombe to the brink of giving her notice, but then it's discovered that Old Mr. Grace plans to ask a member of the staff to marry him. When he calls for Mrs. Slocombe, everyone assumes she's the one.

A transport strike leaves the staff stranded at the store, so Young Mr. Grace offers to let them spend the night on the floor. Tents are set up, but Mr. Lucas has trouble keeping his up. A "campfire" sing along leads to talk of the last World War and the experiences some of them had.

When the mechanical Father Christmas proves that it can't be trusted, Mr. Grace offers a bonus for one of the staff to portray the store Santa. Meanwhile, Mr. Humphries and Mr. Lucas attempt to help Mr. Grainger prepare for a song-and-dance show at an old-folks' home.

When Captain Peacock tries to salvage his marriage, he resorts to radical measures to discourage an admirer.

The Ladies Department is temporarily closed due to refurbishing, so Mrs. Slocombe and Miss Brahms are given counter space over in the Gents. However, the men aren't very happy at having to share their area and do their best to make them unwelcome.

Grace Brothers hosts a week long sales event by selling only German goods. The staff, however, find that the German customers they are getting only want British goods. Captain Peacock objects to the "uniform" he's expected to wear and Mrs. Slocombe gets into the German wines.

Mrs. Slocombe sells her home-made perfume. After a misunderstanding, Mrs. Peacock finds Captain Peacock without his pants (perfume had spilled on them) and the ill-fated trousers in the hands of Mr. Rumbold's secretary.

After Mrs. Slocombe starts dropping hints that it's her birthday, the staff calculate that she is 50 and plan an appropriate party.

Mr. Grainger is selected to fill in for Mr. Rumbold while he is away; the staff wonder whether they should take advantage of Mr. Grainger's good nature, only to discover to their horror that he doesn't have one when he sacks Mrs. Slocombe.

By permission of Mr. Grace, Mrs. Slocombe moves into a display apartment in Grace Brothers, because her new home is occupied by squatters. Due to a transport strike, Mr. Humphries seeks to join her in her new accommodations.

This episode we find Mr. Spooner is about to be discovered by a record company. One problem is that his voice keeps giving out. Mr. Humphries gives him a tonic and he recoveres for a little while. While auditioning on tv with Grace Brothers Staff, his voice gives out.

Mr. Goldberg is hired as a junior after having recently run his own small tailoring business. To Captain Peacock's chagrin, the staff learn that Mr. Goldberg had served under the Captain but recalls those army days differently.

Mr. Grace has an idea to improve Christmas sales--all the staff are to wear novelty costumes, much to their annoyance.

Mr. Grainger is 5 minutes late coming back from his coffee break and this sets in motion a management scheme to monitor all breaks. The staff must sign in and sign out when they leave and return to the department. The department staff revolt and union action is taken

A fuel shortage grips the country and Grace Brothers, so the stores furnaces are shut down for the day. The staff are freezing and soon develop unique ways to keep warm.

Captain Peacock is celebrating his 20th year at Grace Brothers, and while his request for a raise has been turned down, he has been given a key to the Executive Wash Room and the privilige of eating in the Executive Dining Room. He lords this over the department staff and Mr. Grainger decides to make some trouble.

Young Mr. Grace returns from a trip to the U.S. with a host of new sales techniques that he is eager to implement.

When traveling to and from work becomes difficult, the staff threaten to resign unless they receive a travel allowance. Old Mr. Grace offers them the empty apartments on the top floor as living space, but they soon discover cohabitation isn't what it's cracked up to be.

Mrs. Slocombe has dreams in which she and Mr. Humphries become romantically embroiled. When she attempts to turn fantasy into reality, the situation becomes most difficult to handle.

Grace Brothers has decided to enter the video age and display advertisements on closed circuit television throughout the store. Meanwhile, there is a new face in Menswear.

Old Mr. Grace becomes convinced that Mr. Humphries is his long-lost son. Mrs. Humphries (also played by Mr. Inman) arrives, and shows that she has never had relations with Mr. Grace.

The staff decide to obtain a coat-of-arms for Old Mr. Grace's 90th birthday, but problems arise when they're unable to figure out exactly from where his ancestors came.

The staff prepare for a visit by the Queen. The visit is abruptly ended when Mrs. Slocombe accidentally pushes a flower pot out the window, nearly hitting the Royal Couple.

Mr. Humphries' background as a dance instructor is called upon when the Ladies' and Gents' Wear departments form a team to compete in the inter-store ballroom dancing competition.

When Old Mr. Grace decides to allow the staff to use the store for after-hours money-making, they decide to open a nightclub. However, the advertising campaign has some rather unexpected results.

Captain Peacock's wife works at Grace Brothers, as Mr. Rumbold's secretary. He is intensely jealous and is absolutely convinced that the two of them are having an affair.

When the handsome golf pro from Sports comes to the floor for a demonstration, he accidentally hits Mrs. Slocombe. She then thinks she's a little girl, wrecking havoc on the store as she cavorts around the department.

The staff have kittens when Mrs. Slocombe announces she's expecting a happy event, but it turns out that it's merely her cat that's pregnant; when she refuses to leave Tiddles unattended, she braves the ire of Captain Peacock by smuggling the cat into the ladies' fitting room.

Mr. Lucas attempts to send Miss Brahms a love letter suggesting an after-work "get it together". Confusion on who sent the letter and to whom it was intended sets the stage for a lot of misunderstanding. There's also the customers to contend with and Mr. Lucas has a devil of a time fitting them into clothing.

The staff prevent another firm's hostile takeover of Grace Brothers by impersonating the shareholders. Mr. Harman gives a rousing speech, and Grace Brothers is saved.

Mr. Grainger's trousers are missing, along with the central display. The staff learns that the space was freed up for the "His & Hers" fragrance display. Mrs. Slocombe is outraged that they went her to take down her underwear and put perfume there in its place. The glamorous salesgirl causes stirrings in the trouser department. When it's discovered that free stockings and ties are given out with every scent purchase, both departments formulate a plan to oust the intruder.

When the staff of the Ladies' and Gents' departments don't participate in a strike, relations between them and the rest of the store's employees become understandibly bitter. In order to improve the mood, the staff presents a life-size Punch and Judy show for the other employees' children.

The standard of the canteen food of Grace Brothers is rapidly going from bad to worse. After confronting the catering workers with their complaints, the staff are told to get on with the food preparation on their own.

Mrs. Slocombe thinks she's finally got her man, a bouzouki player in a Greek restaurant. The staff plan a reception at the store to help keep costs down, and her American uncle plans on giving the happy couple a house. Before they can leave for the church, however, the best man arrives with bad news, forcing Mr. Tebbs to don the garb of a Greek vicar and Mr. Humphries that of the bridegroom.

A reorganization within the store forces the staff of the gentlemen's ready-to-wear department to share their floor space with the Ladies' Department. Mrs. Slocombe, head of the Ladies, and Mr. Grainger, head of the Gents, immediately come to loggerheads over control of the center floor display. Mr. Grainger refuses to take down his trousers and put Mrs. Slocombe's underwear in its place. Undaunted, she goes over his head to Captain Peacock, and then to Mr. Rumbold.