Frank is newly married and is living with his mother-in-law who is frustrated by him constantly breaking things. His latest attempt to ""help"" involves losing the door to the coal shed. Betty buys him a new briefcase and Frank attends an interview for a sales rep of a wholesale ironmongers. Before he even enters the building he causes chaos by giving a frightening bug-eyed grin to an assistant setting up a window display, causing the assistant to fall over and destroy the display. Frank then gets stuck in the lift for several hours. Once released, the interview with the manager of the company proceeds with Spencer breaking an expensive bathroom thermometer by demonstrating his door-knocking technique and causing a heavy metal cupboard to collapse with him under it. His patience worn thin, the manager gets short-tempered and shouts at his staff and they resign in protest. Frank leaves, confident of the outcome of the interview, only to get stuck in the lift for a second time!

Frank and Betty have moved out of Betty's mother's house and are now staying with Betty's brother, George. George is a very futuristic designer who has filled his house with weird remote-control gadgetry. They are expecting an important visit from Mr Fletcher, the head of a large building firm, who is interested in a demonstration of the mechanical devices in the house, so Frank is on his best behaviour(!) Whilst trying to use the mechanical toilet, Frank accidentally breaks the flushing mechanism. As you'd imagine, his attempts to repair this soon lead to the toilet brush, a ballcock and his slippers becoming wedged in the pan. By now water from the leaking cistern is seeping through the house and finding its way down to the control room in the cellar, where as you'd guess electrical controls are! The others attempt to prevent Mr Fletcher noticing the various mounting problems, but Frank is already at work trying to repair things. His efforts cause a major short circuit of the house's

After being sacked from his job with the water board for getting stuck down a sewer!, Frank attends a public-relations course. On his first evening, Frank joins the other students in an automated canteen which dispenses food from a machine. Frank gets a plate of baked beans by mistake and attempts to stuff them back inside the machine, causing the machine to malfunction and cover everybody in food.

Frank and Betty are going on a second honeymoon. Frank is in the station toilet and (as you'd expect) manages to miss the train. He ends up running for it and grabbing hold of the back of the train. After being dragged along the platform for several minutes, he is eventually pulled inside by an angry guard and returned to Betty.

Betty is ill in hospital and Frank intends visiting her. He stops off at the greengrocer's to buy her some fruit. After much confusion with money, the shop assistant gives Frank the fruit free of charge in order to get rid of him, although he manages to cause an avalanche of oranges before he finally leaves the shop.

Frank has once again lost his job as a fireman after continually missing the fire-engine. He is depressed about this and convinced that he is a failure so Betty suggests that he goes to see a psychiatrist. As part of the session with the psychiatrist, Frank relates how he first met Betty at a riding school where he had been tossed from his horse into a pond. Frank and Betty's first proper date didn't go too well either - Frank become trapped in the mechanism at a bowling alley before managing to tear the letter-box off his front door in an attempt to sneak Betty indoors without his aunt hearing.

When the new employment exchange manager Bradshaw insists that everyone can be helped, veteran Hooper gladly passes on the hopeless case of Frank Spencer. Both his serial disaster-record and 'qualification' (25 meter breaststroke, after 'attending' many schools, till age 11, no actual classes) support Hooper's point amply. Yet Frank acts indignant, and Bradshaw insists on trying - betting he'll keep a job for a week. The only way to win is to employ Frank himself, but this proves far more costly and dangerous for everyone and everything.