Dan, unlike his ex-girlfriend Naomi, isn't invited to his niece's birthday party. Desperate to impress her he manages to persuade the family that he can be trusted with one of the big jobs to get the party ready. Will his dad get to joyfully bathe in his son's failure yet again, or will Dan actually manage to pull it off?
Brian introduces Dan to a guru with a secret, so unbelievably powerful, that he can only tell it to one person at a time - although it's another incredible attribute that keeps Dan completely mesmerised. Unexpected visitors in the classroom and the most extreme of wake-up calls from his dad also stand in the way of this man getting his life back on track.
Christmas is coming, the turkey is getting fat... and, in this case, alarmingly aggressive. After a difficult year, Dan is convinced he has turned his life around only to meet a Christmas thorn in his side in the shape of his aunt Nesta. He and his two faithful friends Jo and Brian quickly discover that a farm is not their natural habitat.
When another teacher and, more importantly, a rival for Miss Lipsey's affections delivers a smash-hit school assembly for Community Week, Dan conspires to top it all with a brilliant one of his own, involving his drama class and a war veteran. Meanwhile, Jo is exploring her artistic side, while Nesta favours an upset Brian over her idiotic nephew.
Dan volunteers to look after his pupil Dennis for the weekend after the boy receives sad news about his family, though he is primarily motivated with impressing Miss Lipsey. The lad is subjected to reliving the childhood years of Jo, Brian and Dan by way of a bike trip, a game of knock down ginger and one of their own devising called furry periscope. Will Dennis have enough fun to wow the headmistress with a retelling of Dan's big-hearted gesture?
Jo announces that she is marrying a digger-driving rapper from "pagan backwater" The Heath, and Dan realises this means that for once he might not be the biggest loser at a social gathering. Never one to miss an opportunity to impress deputy headmistress Miss Lipsey, Dan decides to use his best man's speech to show off his sensitive side, but before that happens he has to contend with bizarre local traditions, an owl attack, and an increasingly exasperated Brian. Features a guest appearance by The Wonder Stuff.
In an action-packed episode involving the police, Dan is struggling to get his 'news' taken seriously, or even listened to by his friends and family. Brian meets the woman of his dreams... and the children of nightmares... while Jo is drawing on every ounce of creative energy to plan the grand opening of her new shop. Nesta also has a big problem to deal with, and 'Daddy' decides to take things up a gear with Dan.
Dan tries to keep his plan to emigrate to the USA moving at pace, but with the complicated issue of a visa to negotiate he knows he needs to draw on all his inner steel to have any chance. With the increasing likelihood of Dan's American dream turning into a nightmare, Jo tries her best to help, while Brian is less concerned by his idiot friends, at best, questionable idea. Meanwhile, issues at home force Dan back into to the gym... although working out is the last thing he wants to do.
Dan shares the shocking news of his adoption with his best mates and embarks on a search for a life that could have been. Brian's children are bored and a trip to the beach with Jo and Dan sounds far more exciting than their father's dull plans. But will Brian take the risk of getting sand in his beloved Renault Scenic and, more to the point, expose his kids to a day out with his ever-irresponsible friends? Cultural awakenings and jeopardy await.
Dan's teaching career is reduced to few words in his final school assembly and some parting gestures from his child nemesis and Mr Klackoff. With Jo in sole charge of organising a Skype-ably impressive party at her shop, Dan can surely relax knowing that this is all in safe hands. But with the usually unflappable Nesta wrong-footed by sinister 'Daddy', Mum taking a turn for the worse, as well as the revelation of a mysterious terror-inducing local and seismic news from America... will Dan's world turn completely upside-down in this series finale?
Dan is frustrated by the universal lack of respect for his new status as a father, and decides to join a local dads' club. Desperate to fit in, how far will 'Papa Bear' go to impress the other dads? Brian is worried about his daughter's cultural identity, and Jo adds to his stress with her box of 'things I don't understand'.