Alison has become a new mother and is ready to divorce David amicably, but things go awry when his old flame Elaine reappears. Meanwhile, Alison has decided not to talk to Virginia and Meagan who are planning to marry and are currently living together.

Alison responds to David's demands for half her money by kicking him out of the house and getting gardener Nick Bottomley to change all the locks. She adds insult to injury by repossessing his treasured Porsche for good measure, while Virginia begins to question the wisdom of a long-term relationship with Megan.

David and Alison decide to have one last go at resolving the divorce out of court, while as her wedding day dawns, Megan discovers what Virginia's been up to with old flame Tamsin. As the guests arrive, Alison realises one of the bridesmaids is missing - and Nick the gardener springs a surprise as well.