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.

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

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

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

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.

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.

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.

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

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.

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.

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.

When Mr. Grace announces that he plans on temporarily reorganizing the departments, the staff are indignant, but find that work can be a lot of fun...if you're working in the toy department.

To celebrate Mr. Grace's 80th birthday, the staff organize This is Your Department, a spoof of This is Your Life.

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

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 temper has become extremely short. The staff, in a private meeting with Mr. Rumbold, decide he must go. However, when he wins the lottery, his bad mood vanishes and he makes his peace with the staff and stays on.