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.

Ruth, an Australian friend of Kate's, comes to stay and Lee is persuaded to pretend to be Tim. Lee gets a job handing out leaflets at a shopping centre, but soon falls foul of a local youth.

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?

Tim decides to sell the flat, so Lee sets to work putting off prospective buyers.

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.

As Lucy and Guy's relationship intensifies, Lee starts to ponder his lack of a girlfriend and, encouraged by Barbara, tries speed dating. Tim is forced to go on a disastrous date with Barbara in order to prove that he sees her as more than 'the help'.

Guy showers Lucy with expensive gifts and whisks her away for a weekend.

Lee's plan to spend time alone with Lucy at Christmas is threatened.

Lee is shocked when Lucy announces that she is pregnant and he wonders if he could accidentally be the baby's father.

Lee wins a £1000 after winning an essay writing competition. A journalist shows up to interview Lee but expects him to be disabled after reading his story.

Lee and Tim ask a lesbian couple who have moved into the building over for dinner. They are shocked when Lucy discovers a side of herself that she never knew existed.

Lee and Tim decide to try and throw Lucy a 30th birthday party but they both have different ideas. Lee is not happy when Lucy shows up at the party with a man and decides to try and get rid of him.

Lucy isn't happy with the noise a new neighbour is making. She asks both Lee and Tim to talk to him but both are scared too. Tim decides to take up boxing so that he will have more courage. Lee ends up going to confront the man.

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 is shocked when he finds out that Lucy is thinking about getting married to Pavlov so that he will be able to remain in the country. As Lee attempts to get her to change her mind her family and other friends think that Pavlov is perfect for her.

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.

After a night spent out clubbing, Tim returns to the flat wearing the wrong coat, and convinces Lee to help him return it to its owner.

Lee's past catches up with him when a young woman appears on his doorstep and asks for a cup of sugar.

Lee promises to stop treating Lucy's flat as if he owns it - but not before he has hired it out to a film director.

Lucy and Tim are distraught. Their parents' 30 year marriage is at an end and their father has moved out of the family home - and into Lee's bedroom.

When an old lady wanders into Lucy's flat and makes herself at home on the sofa, Lee doesn't know what to do with her.

Lee dreams of a perfect life with Lucy, but can the reality ever match up?

When Tim joins a band at work and Lucy falls for the lead guitarist, Lee becomes jealous, and decides that if he can't beat them he should join them.

Lee's lazy weekend is wrecked when his scrounging father turns up unexpectedly. Having just come out of hospital he needs somewhere to stay for the weekend. Will Lee take on the demanding role of carer?

In a desperate bid to prove his manliness, Lee joins Tim, Daisy and Lucy on a camping weekend in the middle of a dark spooky forest.

To impress Lucy, Lee starts training for a 10 kilometre Fun Run only to injure himself immediately. In an effort to hide the injury from Lucy, he gets himself a secret sports massage, but this just leads to more trouble.

Lucy finds herself working on a Government initiative encouraging men to regularly check themselves for lumps. Eager to please Lucy, Lee follows the campaign's advice and discovers something he wasn't expecting.

After Lucy suffers a mild indiscretion whilst drunk and claims to have no memory of the event, she and Lee embark on an experiment with a bottle of home-made potato hooch to prove once and for all that you can remember what happens when you're mashed.

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.