While Ben and the gang are at pub quiz, Ben becomes angry when it is brought to his attention that someone is cheating and he decides to take matters into his own hands. However, his bite might not match his bark.

Janey desperately wants to keep her new man under wraps, while a suspicious Ben tries to expose an affair between Susan and a client.

Susan asks Ben to help an old girlfriend of hers, Mona, through a divorce, but nearly causes her own when Mona tells Ben some surprising tales about Susan. Elsewhere, Roger is feeling down until Janey intervenes.

When Ben and Susan discover that Michael is seeing a therapist, Susan is worried and goes straight for the therapist herself. Meanwhile, Ben thinks a father-son chat will sort out the problem.

Ben's uncle Norris dies, leaving him less than he expected, and instead Susan benefits. Later, the wake is held at the Harpers, but will it go smoothly?

Susan decides to get another dog but when she is considered unsuitable to adopt by the dog adoption assessor, Susan loses her cool, and as a result, it is Ben who ends up in the doghouse.

An undercover assessor for Cavitex, posing as a patient, leads to Ben having to attend a retraining course, and to make matters worse, Roger is also attending.

Ben's old friendship with a celebrity dentist causes problems, while Susan finds a new friendship at an Albanian airport and her loyalty to Ben is put to the test.

Kenzo's school project about the family gives everyone a chance to look at some of the crazier moments in the Harper history.

Ben and Susan go off to a couples' retreat for a weekend - at which they prove to be less than ideal guests - leaving Janey and Michael vying for the affections of Michael's new boyfriend. However, the triangle proves to be more Bermuda than eternal.

More problems for Ben - Janey comes back home, Susan lies to the police, Michael becomes born-again and Abi confuses nature with naturism.

Susan tries to fix Michael up with a new girlfriend called Suzanne, but the similarity doesn't end in the name. Meanwhile, Ben starts a career as a property developer but squatters may make him regret it.

Janey and Michael give their parents a Spanish holiday as an anniversary present but Michael has used Ben's credit card to finance it and needs to replace the money quickly so he contacts "Cash In the Attic", finding that the only sale worth a four figure sum is Susan's beloved antique clock.

At Susan's mother's funeral, Arthur, the father who abandoned the family thirty years earlier, turns up and takes such a dislike to Ben he offers his daughter a million pounds to divorce him. Is she able to refuse such a generous offer?

An eventful night out is had by all, as Janey and Susan go to a hen night, and Roger goes on a blind date, and Ben, who should be at home looking after Kenzo, spends more time out than he bargained for.

When the council assume Ben is disabled and send him cheques he tries to return the money but the clerk won't listen and Rosemary, the gushing welfare visitor who comes to assess him, is too busy saying how brave she thinks he is, to let him get a word in edge ways.

Ben is overjoyed when Mark, Kenzo's wealthy, successful father reappears and encourages him to propose to Janey. Susan, on the other hand, believes that Craig's feelings for her daughter are sincere and gives him her blessing. Roger, due to a misunderstanding, also believes that he is in with a chance.

With Ben away on a volunteer dental programme in Colombia, Susan is persuaded by Janey to go on the Facebook social network, which leads to her meeting up again with charming ex-boyfriend Paul Tremaine. He turns out to be a large scale drug dealer and Susan is forced to help the police trap him to avoid being charged herself.

Susan wants to look her best for an impending school reunion. When she is asked to give the keynote address, however, she decides that her best may need some help. Unfortunately, Ben is on hand to administer the Cavitox.

With Ben on a course Susan works late at the art gallery with handsome young Chris, whose advances she spurns. Next day he accuses her of sexual harassment and she has to attend a course. Janey advises her on how to call his bluff but salvation comes via a far more bizarre reason.

Ben and Susan have yet another row after he refuses to attend her godparents' anniversary party so they decide on a trial separation, taking it in turns to live in the house alone. Ben moves in with Roger, ruining his love life whilst Susan overstays her welcome with Michael and his partner.

Ben is approached by a man who remembers his father as a great darts player and asks him to join the local pub team. Ben discovers that he is not quite the darts player his father was and they replace him. When Roger asks him to join his team he is happy to sign up - and uses all means necessary to secure their victory.

Janey's baby is due and Susan insists on traveling to Manchester for the birth; it's a journey that throws up several blasts from the past.

Ben and Susan have to go back to school for parenting classes as a result of Michael playing truant.

When the children go away for the weekend, Ben and Susan finally have some time to themselves. Unfortunately, it's been so long since that happened, that they have absolutely no idea how to spend it.