Gillian and Robbie grow closer, and Alan calls the wedding off.

Alan finds it hard to choose his best man, and John outs Caroline and Kate.

Caroline and Gillian become unexpectedly close when Alan and Celia go missing all night.

Celia and Alan's search for a wedding venue leaves them trapped in a haunted mansion.

Celia and Alan decide to buy an extravagant sports car instead of an engagement ring.

Two widowers rekindle a passionate relationship that fate stole from them decades ago.