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.

The staff must take physicals to get insurance. Listening through the door of Mr. Grace's office, they hear Mr. Harman describing the state of the furniture, which they misunderstand as being the results of their physicals.

Rumors fly when Captain Peacock gets too friendly with Mr. Rumbold's secretary at the Christmas party, and things get really out-of-hand when it seems they might have spent the night together.

The Store's redecoration plans threaten to interfere in the staffs vacations. Everyone is now expected to take the same two weeks off and there's disagreements on how to handle it. Grace Brother's Tour Group Company offers some package deals, but they are far from First Class.

When Mr. Grace decides to open the store early, the staff set out to sabotage the new policy.

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

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.

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.

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.

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.

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.

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.

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.

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.

Illnesses strike the Department, and Mr. Lucas decides to fake his to get the day off. His plan backfires as he is assigned to the Ladies Counter as a sort of "quarantine".

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.

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

Sales are falling once again and so Mr. Rumbold calls together a "think tank", a suggestion he "borrowed" from Captain Peacock. The staff decide that a fashion show would be the answer, but when Young Mr. Grace won't cough up the dough to hire proper models, the staff are forced to put on the show themselves.

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.

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

An after-hours staff meeting produces an idea to introduce background music and a recorded voice; the only question is--whose voice?

The staff contract a strange tropical illness, Marine's Disease, from Mr. Humphries. They are quarantined in the basement until the disease is past.

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.

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.

The staff perform a play on CB radio to advertise Grace Brothers. The play results in the store being swamped by truck drivers who are driven off by Mr. Humphries and Mrs. Slocombe.

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.

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.

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.

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.

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 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.

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.

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.

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.

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 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.

After finding that Grace Brothers' fire precautions leave a lot to be desired, Mr. Harman helps out training the staff in fire preparedness and a fireman gives Mr. Humphries a lift.

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.

There's trouble afoot at Grace Brothers! Someone's been lifting Mrs. Slocombe's skirts and putting their hands in Mr. Grainger's drawers. Shoplifting has struck the store and Mr. Rumbold installs a store detective and a video surveillance system. It goes off track for awhile, as Mr. Rumbold turns into a voyeur and the staff act like they're on television. Ultimately, the staff decide to do in the scheme and prey on Mr. Rumbolds hypochondria to accomplish it.

Mrs. Slocombe temporarily takes the place of Mr. Rumbold, who has taken ill . She eats the cream cakes she finds in his office. But she then gets a call from the hospital warning that the ice cream is what made him ill.

Mr. Humphries begins displaying his ability to read palms and tell the future. He sees that Captain Peacock will soon be "climbing the ladder and wearing a new hat". Everyone takes this to mean a promotion, especially now that there's a vacancy on the Board of Directors and Mr. Rumbold is in line for it. Captain Peacock expects to take Mr. Rumbold's job. The department staff soon all imagine moving up.