An unexpected visitor forces Alan to think about his past. Gillian and Caroline are anxious - his decision to keep his secret from Celia is sure to backfire. Meanwhile Caroline and a heavily pregnant Kate set a date for their wedding.

We join the first episode of the heart-warming series on Valentine's Day, at a date between Gillian and Gary, a handsome man from Halifax. But as the evening draws on, things aren't quite what they seem with charming, dazzling Gary.

Following on from last series' Christmas wedding ceremony, Alan and Celia discuss going on a honeymoon adventure to New Zealand to visit Alan's brother Ted. Their happiness is short-lived however when someone turns up from Alan's past with devastating consequences.

In a happy turn of events, Caroline proposes to a heavily pregnant Kate. Although Celia seems happy for them, predictably she can't help but comment on the fact that their baby will grow up without a father. Meanwhile a distressed John arrives at Caroline's house after Judith has a miscarriage.