The last series of this classic comedy opens with all staff who have reached a certain age being made redundant, including Mrs.Slocombe. Refusing to leave Grace Brothers, she becomes a cleaner and her position is filled by a younger woman. The staff decide to get her back, no matter what it takes, especially since Mrs.Slocombe's replacement has turned out to be a very annoying woman. Captain Peacock has serious marital trouble. A certain Miss Bagnold is completely infatuated with him and when she joins Grace Brothers Captain Peacock soon finds his position unbearable. He must choose whether he will stay with Mrs. Peacock or not, and is prepared to go to extreme measures to solve his problems. While the staff stay late at the store stocktaking, two burglars break into the store and capture Miss. Brahms, Captain Peacock and Mr.Spooner. While impersonating the most dangerous gangster family of the underworld, Mrs.Slocombe, Mr.Harman and Mr.Humphries pull out all the stops to get the police to the store and capture the burglars. In the final episode of Are You Being Served? it appears as though Mr.Spooner will be sacked. But after a raving review by a local newspaper for his singing performance at a recent concert, a record company offers him a contract. The staff eagerly await to be cast as back-up singers and ensuring the series ends on a high, the stars of the show perform a musical performance to remember!