Kate tries clown classes after unsuccessfully getting Lee to go to them. You couldn't really call her own attempts a success. To repay Kate Lee goes on a date with Lucy Moss, an author whose book, about her turbulent life, was published by Kate's company. It's a less than happy event, as Lee proves less than great at being serious. With Lee out of the way Tim tries to make things up with Kate.
Tim's 94-year-old grandmother dies. Kate accuses Lee of not being in touch with his emotions when he fails to tell her. As penance he sees an expensive psychotherapist, who gets a bit too close to the truth. Tim, flirts with Kate, less than successfully, while she comforts him at his grandmother's funeral.
Lee starts teaching Kate to drive. His (or her) lack of success seems to stress him out and Kate notices. She persuades him to try some yoga and given his track record he doesn't take it seriously. He is banished to have acupuncture while Tim tries his hand at teaching Kate how to drive. He does surprisingly well until Lee admits that he's taking tranquillizers during an increasingly speed fuelled drive in the countryside. Big question...will she pass?
Kate and Lee are forced to take in a lodger, a surly 14-year-old boy called Nicky. Lee's attempts to bond with the teenager prove less than successful, while Tim and Nicky discover they have quite a lot in common. Meanwhile, Kate tries to persuade a carnivorous Great Dane to become a vegetarian with unfortunate results.
Lee finally manages to get a job, as a caretaker. But taking up the new post involves moving out of the flat. Kate interviews potential new flatmates including Pete, and Tim sees an opportunity to get back together with Kate. Lee's new boss proves to be a hard taskmaster. So, will Lee stick at the job or throw in the towel and move back in with Kate?
With Kate having gone back to America, Tim tells Lee he is going to sell the flat, and hires a cleaner called Barbara to clean it. Lee attempts to get a mortgage so he can buy it. In the meantime however he puts off all the potential buyers, until Lucy, who unbeknown to Lee is Tim's sister, arrives saying she will rent the spare room when Lee buys it. Lucy soon decides she wants to buy it herself, and both offer to buy it from Tim. Tim decides to sell it to Lee, however, he cannot get a mortgage so Lucy buys it. On Tim's wishes, she rents out the spare room to Lee.
Lucy persuades Lee to pretend to be gay after she lies to a business acquaintance Guy, who she was told is gay himself, by telling him she lives with a gay flatmate to prove she is not homophobic. However, Guy soon starts to get suspicious and tests Lee's sexuality by taking him to a gay bar. Later, Guy overhears Lee saying to Tim, who had started to think Lee was gay, that he is not gay. When Lucy then explains to Guy what happened, he reveals he is not gay and he and Lucy kiss.
Lucy and Guy are going out with each other, and Guy has practically moved in. This annoys Lee who thinks Guy is too old for her. Lee soon discovers that Guy owns a lap dancing club. While at the club, Lee and Tim see Rose (Thaila Zucchi), a librarian that Tim has been seeing, and discover she is a lapdancer. Tim later dumps her, but then changes his mind. However, Rose refuses to get back together. Meanwhile, Lucy dumps Guy but they soon get back together but agree to take their relationship more slowly.
When Guy's daughter Chloe gets appendicitis, Lee and Tim are left looking after her son Dillon while Guy and Lucy visit her. While in their care, Dillon swallows a subbuteo football and Lee and Tim have problems locating it, and try to think of ways to get it out of his body. However, it later turns out Dillon did not swallow it after all. Lucy is worried about the age gap between her and Guy.
In an effort to appear as intellectual as Lucy's friends, Lee shows off his 'knowledge' of the art world - holding forth on the subject of an unknown artist, who his cleaner Barbara has told him is the next big thing. When Lucy takes the advice and invests a fortune in the artist's work, Lee is left trying to prevent her from finding out the artist is actually a nobody.
Lee thinks that Guy is a gangster and gets suspicious when a suspect package is delivered to Guy. However, there appears to be an innocent reason and Guy goes to take Lucy on holiday to Sicily. However, at the airport Guy asks Lucy to marry him but she turns him down saying he is too controlling, and Guy goes to Sicily on his own and Lucy says their relationship is over.
Lucy and Tim's parents Geoffrey and Wendy invite themselves to the apartment for Christmas, and Lucy persuades Barbara to work on Christmas Day to help out. On Christmas Day, Tim brings his girlfriend Daisy. Lee buys a murder mystery game, which they all then dress up and play. However, the game ends abruptly when Tim and Geoffrey argue. Lee then manages to talk Geoffrey round and they finish the game.
Lucy is stressed. She has an important speech to make at a Recruitment Conference and nobody to help her write it. Lee sees an opportunity to impress her and offers his services but at the expense of Tim, who also thinks he's the best man for the job. What starts off as a small job now turns into a competition between Tim and Lee to not only see who can come up with the wittiest lines but also to establish which of them Lucy likes best.
Lee's father turns up at the flat unannounced. This is the man who walked out of the family home when Lee was four, never paid his maintenance and ate Lee's goldfish. Lee wants him out of the flat but Lucy tells him that the only way forward is to forgive and forget. Unfortunately, Lee's dad's behaviour makes this virtually impossible for Lee to achieve.
In an effort to create the perfect Christmas for Lucy, Lee invites her parents to join the two of them and Daisy in a snug old house in the country which used to belong to his dear dead aunt. But the Christmas spirit is in short supply when Lucy discovers that the house has not been lived in for years and there appears to be a spooky presence. However, the spooky presence turns out to be Lee's dad Frank, who has also turned up to enjoy Christmas in the house with an old flame, and in an effort to get rid of the unwanted visitors he pretends the house is haunted by playing old music and leaving threatening messages on the cellar wall.
The will-they-won't-they tension reaches new highs in this epic series finale for Christmas that sees Lucy and Lee in previously uncharted emotional waters. After being pressured by Frank, Lee gets drunk on the night before his and Lucy's wedding, which causes serious problems for Lee and Frank, along with Lucy's father, Geoffrey, after the police find that the ring that belongs to Geoffrey is actually stolen. Will the three of them make it to the church on time for Lee and Lucy's wedding day?
We join Lee and Lucy live from their festively decorated living room, nervously discussing the Ding Dong Merrily on Live Christmas Spectacular - the Christmas variety show they've been strong-armed into organising to raise money for their children's school. But things are rarely plain sailing for our duo, as they soon come to realise, with an animal impersonator as the only confirmed performer, quality acts are worryingly thin on the ground. Who will Lee and Lucy turn to? Surely Toby and uptight wife Anna can't be roped in? With raw egg juggling and some knife throwing (CUT!) for good measure... what could possibly go wrong?
Lee and Lucy take the children out trick or treating for Halloween, but the night soon turns disastrous for Lee when he loses his phone on the porch of a spooky Victorian house. Once he returns to the house to retrieve his phone, Lee discovers that the house is full of secrets that would be far better left undisturbed.
Lee and Lucy pop out on a last-minute Christmas Eve mission, leaving their youngsters in the apparently capable hands of Geoffrey - cutting more of a strict and stuffy Victorian gent than usual - and wife Wendy. Alas, things don't quite go to plan for the outward-bound duo, as a theft and unexpected trip into deep countryside await. Not only that, but there are encounters with an aggressive bull in a field and a terrifying truck driver to endure. Meanwhile, back at home, Lee's lovably feckless father Frank turns up to offer gifts - in his own inimitably festive way.
Lee and Lucy plan some New Year's Eve festivities in this Christmas special, with both inviting their parents to join them. Things soon go badly wrong as party games give way to an uncompromising round of guests pointing out what New Year's resolutions everyone needs to make - with a distinct lack of festive spirit on display. Starring Lee Mack and Sally Bretton, and featuring the final appearance of Bobby Ball as Lee's feckless father Frank.
When Lee and Lucy are asked to cover for Anna on more than one occasion, so that she can go out at night and have secret Italian Lessons they suspect the worst, that she is having an affair. Lee decides that it is up to him to tell Toby that his marriage is in jeopardy and sets about finding the evidence.
Lee's lifestyle catches up on him and he is forced to wait on a hospital ward for routine surgery on his gallbladder until his blood pressure comes down. But visits from the parents in law and Anna and Toby, who arrive to ask him a question he doesn't want to hear, ensure that his stress levels remain dangerously high.
When Lee goes to watch Benji playing football for a local Under 13 team, he is unable to restrain himself on the touchline and becomes the competitive dad that all the other parents avoid. Undaunted by the disapproval of Toby, who coaches the team, Lee sets about rigging the vote for the Player of the Year.
Lee makes a big effort to create the perfect Christmas for his family by agreeing to Lucy's wish to do something charitable for once. They invite a lonely old pensioner from the nearby care home to join them for Christmas dinner, only to discover that Wilfred is not allowed to drink alcohol.