Newly widowed mother Sally Harrison is trying to hold down a job as an assistant to Mr Campbell, a vet. Her children are Simon and Peter, and her aunt Flo tries to help. She has an occasional love interest in the form of antique bookseller, widower David Redway, who has a daughter Jane.
Simon is going camping and has given his mother a long list of essential requirements. In order to acquaint himself with the pitfalls ahead, he decides to spend the night under canvas in the back garden - while Sally worries about him from the comfort of the house.
Sally is determined to get Simon a new bicycle for his birthday and so offers to do extra hours at work. Once she has acquired the bike she then has the problem of keeping it a secret until the happy day...
General Moresby has come to stay in the Harrison household and is receiving a lot of attention - as you would expect for a mynah bird. Inevitably, there is a mishap when the bird goes missing and Sally has to try to replace him.
Sally decides to learn to drive. Auntie agrees to give her lessons, but they also need to find a car. The Vicar may be about to prove his worth...
Simon's bad school report, and his excuse that his teacher picks on him, leads Sally to head to the school ready for battle. But when she meets the teacher, Mr Montgomery, she forgets all about Simon's report as matters take an unexpected turn.
When the boys start kidding Sally about her weight she takes it personally and ends up in a competition with Auntie to see who can lose the most weight in a fortnight.
In an effort to keep the boys away from the television, Sally introduces them to some hobbies, but they are far from happy with her choices of activities. Could it be that they just need a father figure?
Sally feels the boys need an "interesting" day out during the school holidays, so she takes them on a visit to the House of Commons.
Allan, a long-time admirer of Sally's, arrives unexpectedly and the boys are only too keen to play matchmaker - much to their mother's distress! Auntie, however, is very keen on his continued presence in the house..
Simon sees himself as the potential breadwinner in the house and so announces his intention to leave school. Sally tries to head off his teenage rebellion, but it seems he's already fled to join the army.
Mr. Campbell invites Sally and her family to stay in his sister's home in the country. Unfortunately Sally is her error-prone self, and when Peter falls in the river at the start of their mini holiday and the household has a disturbed night, Miss Campbell starts doubting her own sanity.
Sally's birthday is approaching and she's sure that Simon and Peter will remember of their own accord: so certain, in fact, that she forbids Auntie from giving them even the slightest hint...
Having tested Mr. Campbell's patience a final time, Sally joins the ranks of the unemployed. Fearing her skills are limited - shorthand that can't be read back, an essay on volcanoes and night classes in fruit bottling - she tries a position at the boys' school, but is soon back on the job hunt. Will anything suit?
Mr. Campbell has announced he's returning to Edinburgh to run his father's former practice, and so Sally is once again on the hunt for a new job. She fancies growing and selling her own mushrooms, but Campbell has put a good word in with the man taking over the lease on the shop.
Sally starts work for her dishy new boss, David, but is unsure whether he is unattached. When he asks her out for dinner her hopes rise, but her sons intervene and spoil her plans.
After discovering a stash of adult magazines, Sally decides that the boys are sex mad. When David suggests they meet his daughter at the weekend, she decides to give them a talk on love and babies - but they draw the completely wrong conclusion!
When David suggests the boys meet his daughter Jane, visiting home from boarding school, Sally is worried they may make fun of her as she is quite plain. The three, in fact, get on like a house on fire, and the only trouble arises when David invites Sally to accompany him overnight in taking Jane back to school...
The time has come for the happy couple to meet their respective parents. Sally's already nervous, but reduced to a wreck when she discovers David's mother is a Lady - especially in comparison to her own parents' lack of social graces! But David has a very serious question to ask.
The omens are not good for Sally and David when they go to buy a ring and witness a young couple rowing before breaking off their engagement! Later, at a smart restaurant, a couple celebrating their anniversary start rowing and, to top it all, David announces that he doesn't want a church wedding!
Sally is beginning to question David's commitment to marriage. As they struggle to find a date convenient to both them, their families, and the Vicar, Auntie's tale of her own trip to the altar hardly helps matters, and running errands whilst David waits for an important business call from Germany only adds to Sally's fluster!
With the date for the wedding now set, Sally is happy to start making plans for the honeymoon in Paris and for David to move in. But David is making plans of his own for Sally and the boys to move in with him!
When Sally learns that David wants her to give up her job once they are married she is not best pleased, and the sight of him interviewing pretty girls at his bookshop does not help her mood. Meanwhile, there's still a big question mark over where Auntie will live.
With the wedding only 24 hours away, Sally has completed all the preparations and Auntie has successfully moved in to her new flat about David's bookshop. The one big worry is David's stag night, and Sally's fears are not quashed when she hears that the notorious Nellie McQueen will be behind the bar!
It's the day of the wedding and things would not be the same if something didn't go wrong. First the food and the booze is delivered to the wrong house, David sees his bride-to-be, and then she's late for the church - very late! Taking to foot, it remains to be seen whether she'll make it all.
The wedding reception is in full swing when Sally and David leave for their honeymoon. But after departing two hours early, things go from bad to worse and Sally ends up in Paris alone!
The honeymoon's over - in more ways than one, as the combined family's new living arrangements prove fractious right from breakfast! Soon left at home alone Sally finds herself quickly bored, but a phone call from the local newspaper offers a distraction. David, meanwhile, bumps into an old friend.
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