Lee argues with Lucy that it's a myth that people forget things when they're drunk. As an experiment they get drunk on 85% proof and wake up in bed together and realise they may have recorded the event and then swapped the tape with Tim and Daisy's holiday video.
Lucy, working on a men's health programme persuades Lee check 'downstairs' for lumps. When his testicles seem to be unnaturally swollen Lee visits the doctor but runs away because it's a woman. Instead, he gets Tim to visit a sauna to 'check' what size testicles should be.
In order to impress Lucy, Lee enters for a charity run but gets injured in his first go at training.
In an effort to show the others that he is not a wimp who needs his creature comforts, Lee agrees to accompany Tim, Lucy and Daisy on a camping weekend.
Bobby Ball is back as Lee's dad. A lot of rear end gags.
Tim forms a rock group, with fairly uninspiring banter.