David hires Donna, his lodger and the daughter of his best friend. While showing her round the office he discovers a doctored pornographic image of himself. Gareth, due to his covert operations skills, is told to catch the culprit.

It's the annual comic relief day fund raiser at the office and the employees are up to their usual silliness. Tim raises money from his mates by playing a prank on Gareth. Dawn is selling kisses at reception and the bashful Tim buys one. It leads him to reconsider his relationship with Rachel but he's devastated when he hears of her near-term plans with Lee. Others in the office have their own take on humor but David is again pushed to extremes when the ever popular Neil does a spot on John Travolta imitation from Saturday Night Fever. Humor aside, David has also missed submitting a report and Neil offers him a redundancy package.

It's David's last day and he is outwardly very calm about it all. The company has sent a writer to interview him for an article on leadership and his idea is to dictate the contents rather than answer any of her questions. He thinks he has a bright future as a trainer but gets bad news on that front as well. He tries to reverse Neil's decision but to no avail. Tim decides it's time to have a chat with Dawn. Gareth is convinced that he's in line to replace David.