When Alan's car is stolen, he and Celia become involved in a car chase. They crash, and both cars are written off. Stranded in Skipton, Celia and Alan find themselves spending even more time together than they anticipated.

Celia Dawson and Alan Buttershaw haven't seen each other for 60 years. When they're reunited via Facebook, they arrange to meet, and discover that it was an unfortunate twist of fate that prevented them from getting together all those years ago. Their passionate feelings for each other are instantly reignited.

When Alan's car is stolen, he and Celia become involved in a car chase. Celia catches up with the thieves, but while in hot pursuit her car ploughs straight into the back of Alan's, and both cars are written off. Stranded in Skipton, Celia and Alan ring their respective daughters to pick them up, and find themselves spending even more time together than they anticipated.

Apart from being in their mid-40s and having tortuous domestic lives, arrogant, repressed Caroline and happy-go-lucky Gillian have almost nothing in common. Both of them have had spectacularly bad days, and so when they meet in Skipton to rescue their parents, neither is in the mood for any nonsense.

Seconds before they're introduced to each other, they fight over a parking space and insult each other viciously. Then they go inside the pub, where Celia and Alan introduce them to each other and announce that they're getting married. The two are going to be sisters-in-law.