After a shopping trip, the Harpers face the prospect of spending Christmas stuck on the London Underground.

The Harper house is quarantined because Roger is contagious. Nick goes into business with an 18ft python.

Abi's father asks Ben to be his best man, which turns out to have been a bad move, as he hands over the running of the stag night to Nick.

The Harpers get a free holiday to Lanzarote, and even though Ben loses his luggage, he is happy enough to use his brand new digital camera as much as possible.

Ben and Susan have to go back to school for parenting classes as a result of Michael playing truant.

Susan decides that Ben should spend more time with Michael in case he turns into another Nick. Janey leaves the grandparents to babysit Kenzo.

Susan decides to enter enthusiastically into the spirit of 'trick or treat' for the neighbourhood children, which Ben tries to ignore until the spirits get to him.

Janey's baby is due and Susan insists on travelling to Manchester for the birth. The journey turns into a trip down memory lane for Ben.

Janey's baby is due, and Susan insists on travelling to Manchester for the birth. The journey throws up several blasts from the past.

The Harpers' marriage is threatened by Susan's discovery that the love poem Ben wrote to woo her was not an original.

The local paper has announced that Ben has died. Could it be true, he wonders?

Normally, nobody in the Harper family would willingly set foot in Nick's flat, but when Susan's mother comes to stay, it suddenly seems more attractive.

Susan decides that she and Ben should take dance lessons, but they soon find that it takes more than two to tango.

Susan is looking forward to the birth of her first grandchild, but not to being a grandmother. Nick wants to move back in. And a new arrival at Ben's surgery has quite an impact.