Ian's school friend Darren turns up out the blue sparking many memories - and when the neighbours probe into their past relationship, Gordon finds himself in a spiral of paranoia.
Taking advantage of the weather, the neighbours head for the back garden, but it's hardly relaxing as Beth fields criticisms of everything from her garden furniture to her slabs.
It's Father's Day at the carvery for Ian, Gordon, their parents and Christine, who wangled an invitation. As she grumps about the beef, Gordon grapples with family revelations.
As snow begins to fall, it's a welcome break at the coffee shop after a spot of Christmas shopping where Christine surprises the neighbours with some uncharacteristic festive generosity. Michelle is annoyed that Alan has lost his wallet.
Alan is laid up on the sofa after injuring his leg in an accident. Beth and Eric are looking after him when Christine arrives with some goodies and then Colin arrives and can't wait to share details of internet dates.
Cathy and Colin are back from an Italian holiday and hosting a soiree at their house - arranged for the purpose of showing off how popular they are. They've invited Gail and Andy, the couple they met in Sorrento, to meet the neighbours.
Alan and Michelle are bleary-eyed off a delayed flight from Las Vegas. They've got big news to share with the neighbours, but their exciting announcement gets quickly out of hand.
Beth has cooked a vegetable curry for Ian and Gordon's anniversary, but there's no such thing as a quiet family meal with the neighbours inviting themselves over and hijacking the occasion.
Michelle and Alan welcome the neighbours for a Christmas get-together. But Christine is feeling vulnerable and Alan's attempt to de-stress Ian backfires, leaving their hosts struggling to keep the evening on track.