Alan cancels the wedding off and Robbie grows closer to Gillian.
John reveals Kate and Caroline's secret and Alan finds that selecting his Best Man is not an easy task.
When Celia and Alan are away for the night, Gillian and Caroline get to know each other.
Whilst looking for somewhere to hold their wedding, Alan and Celia find themselves trapped in a mansion known to be haunted.
Alan and Celia decide to forgo an engagement ring and splash out on a sports car instead.
Alan and Celia, both widowed, meet again decades later and re-ignite their relationship.