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.

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.

As a surprise for Lee's birthday, Lucy invites the whole family to join them in an escape room.

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.

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.

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.

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.

A missing toy keyring causes a rift between Lee and Lucy and best friends, Toby and Anna.

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

Lee and Lucy play hot tub fantasy date with Anna and Toby, causing them to end up in hot water.

When Lee accidentally sends a rude text about Anna to Lucy, he makes the stupid mistake of sending it to Anna herself. Lee and Lucy now face the impossible task of stealing Anna's phone and deleting the text before she reads it.

Lucy takes the kids away to her parents while Lee stays in the house to oversee the building work in their kitchen. Unfortunately, the builder Lee has employed to do the job has an annoyingly relaxed attitude to deadlines.

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 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.

Lucy's father reluctantly allows Lee to help Lucy clear up the builder's mess in their new kitchen extension.

Unable to convince Lucy that he didn’t smash her precious antique vase - an heirloom that belonged to her grandmother - Lee summons the family to a meeting to flush out the culprit.

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 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 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.

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.

In an attempt to impress Lucy with his intellectual prowess, Lee joins Daisy as a contestant on the TV quiz show Pointless.

No matter what happens, Lucy's surprise party for her parents' anniversary must remain a secret or it won't be a surprise. So why she tells Lee about it is anyone's guess.

Lee spends time in the bar with Toby worrying that the woman of his dreams is drifting further away.

Lee Mack, Sally Bretton and Katy Wix introduce a compilation of out-takes from across the various series.

Lucy causes offence by choosing the wrong babysitter.